Sometimes, the gnome desktop disappear, all windows are displayed (including minimized ones and thoses on other workspaces) then gnome-shell restarts This one was with GNOME classic but it sometimes happens with regular GNOME. See attached GDB trace Reproducible: Steps to Reproduce:
Created attachment 5340 [details] GDB trace with symbols
Closing as old
Status: NEW => RESOLVEDResolution: (none) => OLD