after updating and rebooting f42 since this morning some apps like terminal, settings, nautilus start as white rectangles (instead of the usual app windows) that cannot be used. other apps like firefox, google-chrome, kodi start normal with their usual windows. I filed this as a gnome-shell bug in red hat bugzilla and received an automatic reply that this category is not actively monitored with a recommendation to report the issue in gnome.org
See: Certain apps not showing correctly after last update
You can either downgrade mesa or set an environment variable to work around it.
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thank you very much. I downgraded mesa and that resolved the issue for the time being:
- CTRL-ALT-F3 and login to terminal
- sudo dnf downgrade ‘mesa*’ --refresh
- sudo reboot
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