https://github.com/mltframework/shotcut/issues/587 I have tested 3 apps so far: * org.shotcut.Shotcut (crash when saving project or exporting) * org.kde.kdenlive (crash when exporting) * org.openshot.OpenShot (crash when saving project) Might be related to: https://cgit.kde.org/flatpak-kde-runtime.git/commit/?h=qt5.9lts&id=9870ee160e5a776ed141f9e54f466b5543f467e8
The crash happens under GNOME, not under KDE!
This is a known issue and fix is already on review in Qt. We will backport it soon to KDE runtime.
I backported the fix to KDE runtime, you should get an update once the build is finished.
I tested against the updated runtime and even after rebuilding the app, it still crashes.
Do you use QGnomePlatform platform theme? It will be used automatically when installed.
I managed to reproduce the crash. I'll try to fix it as soon as possible.
If you can't come up with a fix, it would be good to revert that commit, because basically all kde runtime based apps are useless now. This gives a very bad impression of flatpak to new users.
I just pushed fix for this, I tested it and it worked. It's building now in flathub. Sorry for your troubles, it's sometimes complicated to do some portal stuff and test all possible use cases.