Ok, I re-installed 0.92.1 to check again.
The news is that, at least from what I can tell right now, the vanishing only happens upon undoing an action.
I just drew a few lines in a new document (to be sure that it's not a memory issue with the far larger documents I encountered this in).
Sometimes when undoing an action, all lines vanish from sight. This happens after only a few iterations.
I'm quite positive there's nothing special about this file, and that this is evidence that the behavior affects any file, but I'm attaching it anyway.
Ok, I re-installed 0.92.1 to check again.
The news is that, at least from what I can tell right now, the vanishing only happens upon undoing an action.
I just drew a few lines in a new document (to be sure that it's not a memory issue with the far larger documents I encountered this in).
Sometimes when undoing an action, all lines vanish from sight. This happens after only a few iterations.
I'm quite positive there's nothing special about this file, and that this is evidence that the behavior affects any file, but I'm attaching it anyway.