This happens on a clean installation of 18.10 here as well, and I'd like
to point out that the window miniature previews are clearly visible and
in some cases even readable from the lock screen by right clicking the
application icons and selecting "All Windows".
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You received this bug notificat
Open Sudoku
Press F1 multiple times (5 times was enough for me)
Try to close a loading window (before information is shown)
Cancel the force window close sign.
Wait a few secs and it gives an similar error.
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yelp crashed with SIGSEGV in g_main_context_dispatch()
https://bugs.launchpad.net/bugs/
