Constant flickering of webpage on launch (Fedora 37)

[jilinoleg]

When I launch latest (specifically, this build) appimage on Fedora 37 KDE browser window shows up but then "webpage" part of window starts flickering between black and white

Terminal shows this in start:

[Warning]: Could not find the Qt platform plugin "wayland" in "" ((null):0, (null))
[SQLite3] [283]: recovered 18 frames from WAL file /home/oleg/.config/Vaccarelli/favicons.db-wal
[SQLite3] [283]: recovered 3 frames from WAL file /home/oleg/.config/Vaccarelli/web_thumbnails.db-wal
[SQLite3] [283]: recovered 3 frames from WAL file /home/oleg/.config/Vaccarelli/extension_storage.db-wal
[SQLite3] [283]: recovered 7 frames from WAL file /home/oleg/.config/Vaccarelli/bookmarks.db-wal
[SQLite3] [283]: recovered 19 frames from WAL file /home/oleg/.config/Vaccarelli/history.db-wal
[Warning]: No credential store found. Disabling AutoFill. ((null):0, (null))

And in simmilar rate to flickering it starts writing this line over and over:

[Debug]: Render process terminated with status 2 , exit code 159 ((null):0, (null))

After some time it crashes.

Log file contents:

[0]: /home/oleg/Downloads/Viper_Browser-1-x86_64.AppImage(_Z12_handleCrashiP9siginfo_tPv+0x6b) [0x55a29513b15b]
[1]: /lib64/libc.so.6(+0x3cb50) [0x7feb4f65fb50]
[2]: /home/oleg/Downloads/Viper_Browser-1-x86_64.AppImage(+0x168812) [0x55a2951e8812]
[3]: /tmp/.mount_Viper_umQLnX/usr/bin/../lib/libQt5Core.so.5(+0x2fa62e) [0x7feb4fefa62e]
[4]: /tmp/.mount_Viper_umQLnX/usr/bin/../lib/libQt5WebEngineWidgets.so.5(_ZN14QWebEnginePage23renderProcessTerminatedENS_30RenderProcessTerminationStatusEi+0x53) [0x7feb590e2963]
[5]: /tmp/.mount_Viper_umQLnX/usr/bin/../lib/libQt5WebEngineCore.so.5(+0xa2bfe3) [0x7feb5162bfe3]