Bug 510966 - systemsettings UI freezes, hogs the CPU and spams the journal with "Invalid entry" when launching an AppImage from its file - KConfigIni mistakenly tries parsing it as a .desktop file
Summary: systemsettings UI freezes, hogs the CPU and spams the journal with "Invalid e...
Status: REPORTED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_keys (other bugs)
Version First Reported In: 6.5.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-10-23 15:36 UTC by Mariusz Libera
Modified: 2025-10-24 11:41 UTC (History)
6 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

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2025-10-24 09:38 UTC, Mariusz Libera 		Details
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Description Mariusz Libera 2025-10-23 15:36:37 UTC 
I opened the system settings and the shortcuts page - the UI froze, the fans in my laptop ramped up and the journal got spammed with the following over and over until I closed the system settings:

Oct 23 17:21:11 legion systemd[1132]: Started System Settings - System Settings.
Oct 23 17:21:12 legion systemsettings[130986]: Using fontconfig file: "/home/mariusz/.config/fontconfig/fonts.conf"
Oct 23 17:21:12 legion systemsettings[130986]: Starting libddcutil. library built Not set at Not set. stdout_stderr_redirected=true
Oct 23 17:21:12 legion systemsettings[130986]: qrc:/kcm/kcm_landingpage/main.qml:26:5: QML FormLayout: Binding loop detected for property "wideMode":
                                               qrc:/qt/qml/org/kde/kirigami/layouts/FormLayout.qml:72:5
Oct 23 17:21:12 legion systemsettings[130986]: qrc:/kcm/kcm_landingpage/main.qml:26:5: QML FormLayout: Binding loop detected for property "wideMode":
                                               qrc:/qt/qml/org/kde/kirigami/layouts/FormLayout.qml:72:5
Oct 23 17:21:12 legion systemsettings[130986]: InitManagerJob Error: Job was deleted before finished!
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 1:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 2:" Invalid entry (missing ']')
Oct 23 17:21:17 legion systemsettings[130986]: [126B blob data]
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 3: Invalid escape sequence: «\
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 4:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 6:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 7:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 9:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 10:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 11:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 12:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 13:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 14:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 15:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 16:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 17:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 18:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 19:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 21: Invalid escape sequence: «\
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 23:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 24:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 25: Invalid escape sequence: «\]»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 25: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 25: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 25: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 26: Invalid escape sequence: «\û
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 27: Invalid escape sequence: «\$»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 27: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 27: Invalid escape sequence: «\û
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 27: Invalid escape sequence: «\þ»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 28: Invalid escape sequence: «\"»
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 29:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 30:" Invalid entry (missing ']')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 32:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 33:" Invalid entry (missing ']')
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 36: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: [127B blob data]
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 36: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 36: Invalid escape sequence: «\A»
Oct 23 17:21:17 legion systemsettings[130986]: KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 36: Invalid escape sequence: «\û
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 37:" Invalid entry (second locale!?)
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 38:" Invalid entry (missing ']')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 39:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 40:" Invalid entry (missing ']')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 41:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 42:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 43:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 44:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 45:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 46:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 47:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 48:" Invalid entry (second locale!?)
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 49:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 50:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 51:" Invalid entry (second locale!?)
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 52:" Invalid entry (missing '=')
Oct 23 17:21:17 legion systemsettings[130986]: "KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage, line 54:" Invalid entry (missing '=')

Operating System: Arch Linux 
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.4-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 6800H with Radeon Graphics
Memory: 40 GiB of RAM (34.9 GiB usable)
Graphics Processor: AMD Radeon 680M
Manufacturer: LENOVO
Product Name: 82RE
System Version: Legion 5 15ARH7
Comment 1 Nate Graham 2025-10-23 15:44:57 UTC 
This should be the same as Bug 510758, which will be fixed in Frameworks 6.20.

*** This bug has been marked as a duplicate of bug 510758 ***
Comment 2 Mariusz Libera 2025-10-23 15:53:57 UTC 
(In reply to Nate Graham from comment #1)
> This should be the same as Bug 510758, which will be fixed in Frameworks
> 6.20.
> 
> *** This bug has been marked as a duplicate of bug 510758 ***

I don't see how those two bugs are related.
Comment 3 Nate Graham 2025-10-23 15:54:44 UTC 
It's the binding loop.
Comment 4 Mariusz Libera 2025-10-23 16:08:17 UTC 
(In reply to Nate Graham from comment #3)
> It's the binding loop.

Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage as an ini file (.desktop)? Because that's what I think might be happening seeing the log messages.
Comment 5 Mariusz Libera 2025-10-23 16:34:19 UTC 
(In reply to Mariusz Libera from comment #4)
> (In reply to Nate Graham from comment #3)
> > It's the binding loop.
> 
> Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> as an ini file (.desktop)? Because that's what I think might be happening
> seeing the log messages.

Systemsettings works fine (In reply to Mariusz Libera from comment #4)
> (In reply to Nate Graham from comment #3)
> > It's the binding loop.
> 
> Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> as an ini file (.desktop)? Because that's what I think might be happening
> seeing the log messages.

System settings works fine if I move the appimage file.
Inspecting ~/.config/kglobalshortcutsrc there is a reference to the appimage in question:

[/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage]
9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
_k_friendly_name=/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage

[/home/mariusz/Downloads/LM-Studio-0.3.30-1-x64.AppImage]
9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
_k_friendly_name=/home/mariusz/Downloads/LM-Studio-0.3.30-1-x64.AppImage

[/home/mariusz/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage]
9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
_k_friendly_name=/home/mariusz/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage

I remember the app showed me a dialog to register a global shortcut.
Comment 6 Nate Graham 2025-10-23 16:38:22 UTC 
Ok, then I have indeed mis-diagnosed the issue. Sorry about that!
Comment 7 Mariusz Libera 2025-10-23 16:59:05 UTC 
(In reply to Mariusz Libera from comment #5)
> (In reply to Mariusz Libera from comment #4)
> > (In reply to Nate Graham from comment #3)
> > > It's the binding loop.
> > 
> > Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> > as an ini file (.desktop)? Because that's what I think might be happening
> > seeing the log messages.
> 
> Systemsettings works fine (In reply to Mariusz Libera from comment #4)
> > (In reply to Nate Graham from comment #3)
> > > It's the binding loop.
> > 
> > Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> > as an ini file (.desktop)? Because that's what I think might be happening
> > seeing the log messages.
> 
> System settings works fine if I move the appimage file.
> Inspecting ~/.config/kglobalshortcutsrc there is a reference to the appimage
> in question:
> 
> [/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage]
> 9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
> _k_friendly_name=/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.
> AppImage
> 
> [/home/mariusz/Downloads/LM-Studio-0.3.30-1-x64.AppImage]
> 9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
> _k_friendly_name=/home/mariusz/Downloads/LM-Studio-0.3.30-1-x64.AppImage
> 
> [/home/mariusz/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage]
> 9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
> _k_friendly_name=/home/mariusz/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage
> 
> I remember the app showed me a dialog to register a global shortcut.

So I deleted those shortcut entries and created a proper .desktop file in ~/.local/share/applications referring to the appimage instead of running it directly - and now everything works nicely. Still, directly running appimages that register shortcuts seem to create a nasty bug.
Comment 8 Harald Sitter 2025-10-24 07:31:14 UTC 
(In reply to Mariusz Libera from comment #4)
> (In reply to Nate Graham from comment #3)
> > It's the binding loop.
> 
> Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> as an ini file (.desktop)? Because that's what I think might be happening
> seeing the log messages.

What's the mistake? You put it in a location for ini files so it gets parsed as such, no?
Comment 9 Bug Janitor Service 2025-10-24 09:02:56 UTC 
A possibly relevant merge request was started @ https://invent.kde.org/frameworks/kconfig/-/merge_requests/398
Comment 10 Mariusz Libera 2025-10-24 09:05:10 UTC 
(In reply to Harald Sitter from comment #8)
> (In reply to Mariusz Libera from comment #4)
> > (In reply to Nate Graham from comment #3)
> > > It's the binding loop.
> > 
> > Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> > as an ini file (.desktop)? Because that's what I think might be happening
> > seeing the log messages.
> 
> What's the mistake? You put it in a location for ini files so it gets parsed
> as such, no?

No. I didn't put it in a location for ini files. I double clicked it from /home/mariusz/.local/bin/appimage/ folder, it asked to register a global shortcut and kde put this in ~/.config/kglobalshortcutsrc:

[/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage]
9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
_k_friendly_name=/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage

And then systemsettings started parsing the appimage in the path you see in the logs:

KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage

Which is not a location for .desktop files, just the path from which the appimage was executed. That's the mistake.(In reply to Harald Sitter from comment #8)
> (In reply to Mariusz Libera from comment #4)
> > (In reply to Nate Graham from comment #3)
> > > It's the binding loop.
> > 
> > Are you sure it's not KConfigIni mistakenly trying to parse a 1GB appimage
> > as an ini file (.desktop)? Because that's what I think might be happening
> > seeing the log messages.
> 
> What's the mistake? You put it in a location for ini files so it gets parsed
> as such, no?

No. I didn't put it in a location for ini files. I double clicked it from /home/mariusz/.local/bin/appimage/ folder, it asked to register a global shortcut and kde put this in ~/.config/kglobalshortcutsrc:

[/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage]
9818A1EA6A4731EC3D8F9549969A61C8-=none,none,Electron shortcut\s
_k_friendly_name=/home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage

And then systemsettings started parsing the appimage in the path you see in the logs:

KConfigIni: In file /home/mariusz/.local/bin/appimage/LM-Studio-0.3.30-1-x64.AppImage

Which is not a location for .desktop files, just the path from which the appimage was executed. That's the mistake.
Comment 11 Harald Sitter 2025-10-24 09:11:03 UTC 
I see. I don't get any such dialog when running the appimage though. How did you install it?
Comment 12 David Redondo 2025-10-24 09:12:55 UTC 
theory it puts it path as app_id  which the portal uses as the component name for kglobalaccel. And then somehow the kcm thinks this is a shortcut component backed by a desktop file.

I tried downloading the appimage but ir refuses to start for me.
Comment 13 David Redondo 2025-10-24 09:16:15 UTC 
Maybe this goes wrong because we saved an absolute path,

https://invent.kde.org/plasma/plasma-desktop/-/blob/master/kcms/keys/globalaccelmodel.cpp#L119

KService::Ptr service = KService::serviceByStorageId(componentUnique);

kservice then tries to parse the file pointer to by the absolute path.
Comment 14 Mariusz Libera 2025-10-24 09:38:00 UTC 
Created attachment 186084 [details]
screenshot

This is the dialog that I get when running the appimage in question.
I didn't 'install' it, just downloaded and double clicked from dolphin, and confirmed that I want to execute it.
Comment 15 Harald Sitter 2025-10-24 10:40:08 UTC 
When I try to double click the appimage all I get is 

> For security reasons, launching executables is not allowed in this context.
Comment 16 Mariusz Libera 2025-10-24 11:41:18 UTC 
(In reply to Harald Sitter from comment #15)
> When I try to double click the appimage all I get is 
> 
> > For security reasons, launching executables is not allowed in this context.

Maybe your filesystem is mounted with 'noexec' ? Does running other executables work? Have you tried running it from konsole?