Created attachment 160334 [details]
backtrace

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. Integrate and run an AppImage from https://onedrive.live.com/?authkey=%21AIsCKC8oZsYQczM&id=11407577D948B8E6%211024&cid=11407577D948B8E6
2. Right click its icon in Start menu and choose "Edit Application..."
3. In "Application" tab, append  ` --proxy-server="127.0.0.1:7890"` to "Program" box, click OK
4. Try again step 3, and plasmashell will crash

OBSERVED RESULT
4. Everything ok

EXPECTED RESULT
5. plasmashell crash

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.10
Kernel Version: 6.1.38-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 16 × Intel® Core™ i7-10700 CPU @ 2.90GHz
Memory: 31.2 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630
Manufacturer: HP
Product Name: HP 288 Pro G6 Microtower PC

ADDITIONAL INFORMATION
more details backtrace in attachment.
```
           PID: 3276 (plasmashell)
           UID: 1000 (hsz)
           GID: 1000 (hsz)
        Signal: 11 (SEGV)
     Timestamp: Mon 2023-07-17 21:51:03 CST (43s ago)
  Command Line: /usr/bin/plasmashell --no-respawn
    Executable: /usr/bin/plasmashell
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/plasma-plasmashell.service
          Unit: user@1000.service
     User Unit: plasma-plasmashell.service
         Slice: user-1000.slice
     Owner UID: 1000 (hsz)
       Boot ID: 61251ed522c042cf93fba4ddf04520aa
    Machine ID: 25bf8067318442ae8316172e6fcd90fd
      Hostname: hsz-linux
       Storage: /var/lib/systemd/coredump/core.plasmashell.1000.61251ed522c042cf93fba4ddf04520aa.3276.1689601863000000.zst (present)
  Size on Disk: 32.4M
       Message: Process 3276 (plasmashell) of user 1000 dumped core.
                
                Stack trace of thread 3276:
                #0  0x00007f39150b70e4 _ZN18QWidgetLineControl15internalSetTextERK7QStringib (libQt5Widgets.so.5 + 0x2b70e4)
                #1  0x00007f39134e3924 n/a (libKF5KIOWidgets.so.5 + 0xd6924)
                #2  0x00007f39134cee56 n/a (libKF5KIOWidgets.so.5 + 0xc1e56)
                #3  0x00007f39134d1549 n/a (libKF5KIOWidgets.so.5 + 0xc4549)
                #4  0x00007f39134d1fbf _ZN17KPropertiesDialogC1ERK4QUrlP7QWidget (libKF5KIOWidgets.so.5 + 0xc4fbf)
                #5  0x00007f39134d2083 _ZN17KPropertiesDialog10showDialogERK4QUrlP7QWidgetb (libKF5KIOWidgets.so.5 + 0xc5083)
                #6  0x00007f38a7fdd74c n/a (libkickerplugin.so + 0x6574c)
                #7  0x00007f38a7fa81bf n/a (libkickerplugin.so + 0x301bf)
                #8  0x00007f38a7fcdb53 n/a (libkickerplugin.so + 0x55b53)
                #9  0x00007f38a7fa03c7 n/a (libkickerplugin.so + 0x283c7)
                #10 0x00007f38a7fa33bb n/a (libkickerplugin.so + 0x2b3bb)
                #11 0x00007f39158787e4 n/a (libQt5Qml.so.5 + 0x2787e4)
                #12 0x00007f3915778991 n/a (libQt5Qml.so.5 + 0x178991)
                #13 0x00007f391577ddb6 _ZNK3QV413QObjectMethod12callInternalEPKNS_5ValueES3_i (libQt5Qml.so.5 + 0x17ddb6)
                #14 0x00007f391578ff87 n/a (libQt5Qml.so.5 + 0x18ff87)
                #15 0x00007f39157959e4 n/a (libQt5Qml.so.5 + 0x1959e4)
                #16 0x00007f3915737160 n/a (libQt5Qml.so.5 + 0x137160)
                #17 0x00007f391578ff87 n/a (libQt5Qml.so.5 + 0x18ff87)
                #18 0x00007f39157959e4 n/a (libQt5Qml.so.5 + 0x1959e4)
                #19 0x00007f391573735a _ZN3QV48Function4callEPKNS_5ValueES3_iPKNS_16ExecutionContextE (libQt5Qml.so.5 + 0x13735a)
                #20 0x00007f391589999d _ZN24QQmlJavaScriptExpression8evaluateEPN3QV48CallDataEPb (libQt5Qml.so.5 + 0x29999d)
                #21 0x00007f39158558a1 _ZN25QQmlBoundSignalExpression8evaluateEPPv (libQt5Qml.so.5 + 0x2558a1)
                #22 0x00007f391585681c n/a (libQt5Qml.so.5 + 0x25681c)
                #23 0x00007f3915878705 _ZN12QQmlNotifier10emitNotifyEP20QQmlNotifierEndpointPPv (libQt5Qml.so.5 + 0x278705)
                #24 0x00007f39142cff90 n/a (libQt5Core.so.5 + 0x2cff90)
                #25 0x00007f39142d06a7 n/a (libQt5Core.so.5 + 0x2d06a7)
                #26 0x00007f3914f6bbb7 _ZN7QAction9triggeredEb (libQt5Widgets.so.5 + 0x16bbb7)
                #27 0x00007f3914f7160b _ZN7QAction8activateENS_11ActionEventE (libQt5Widgets.so.5 + 0x17160b)
                #28 0x00007f39150f3fbb n/a (libQt5Widgets.so.5 + 0x2f3fbb)

```