Linux Desktop AppImage 3.14.0 amd64 can't remember authentication

[tassoman]

After updating from 3.13.x to 3.14.0, my profile's token can't be remembered. Always opening web browser authentication process.
I read sdout logs and seen configuration can't be moved from .local/share/Nextcloud to .config/Nextcloud so moved by my self.

Since then, app is crashing:

Failed to initialize instances shared memory:  "QSharedMemory::handle: doesn't exist"
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclMfmKFP/usr/libexec/qtwebengine_dictionaries'
Path override failed for key base::DIR_APP_DICTIONARIES and path '/tmp/.mount_NextclMfmKFP/usr/libexec/qtwebengine_dictionaries'
[0925/095730.164066:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
[0925/095730.164100:FATAL:v8_initializer.cc(516)] Error loading V8 startup snapshot file
Rilevato trace/breakpoint

So I tried to delete both directories, plus .cache/Nextcloud but, no results.

Environment is Debian Testing amd64 XFCE desktop

What's happening? Is 3.14.0 buggy? Also, dark theme is missing. and Settings item menu can't be clicked.

[phi0042]

Same thing with 3.14.1 and Ubuntu 24.04.