MuseScore 3.1.0 Ubuntu random "vanishes" with Undo
Grr...another problem for my favorite music notation software. I first experienced it with MuseScore 3.1.0 Beta. (Used 2.3.2 and 3.0.5 for quite some time without experiencing this issue.) At first, I figured it was simply a "beta issue", and noticed today that the release version was out. Unfortunately, after downloading and "installing" MuseScore 3.1.0 e26f7c4, I am sorry to report that the issue is still there. (For what it's worth, it seems to me that the release version is "quicker" than the beta version.)
Basically, I'm doing a lot of music inputting, inputting lots of notes...and a few mistakes. A quick Ctrl+Z (or going back to re-enter the note/duration) works MOST of the time. However, after a minute or so of inputting music (interspersed with a dozen or so corrections), one more correction and suddenly MuseScore vanishes. No crash dialog, no warning, nothing. It just completely vanishes--and any work that wasn't saved (auto or Ctrl+S) is lost. When I restart MuseScore, it comes up with a dialog, "The previous session quit unexpectedly..." Restores me right back to where I was, less the work since the last save.
Is there anything I can do to help track down this bug? (I have Autosave set to every 2 minutes.) If I spend the day inputting music, I'll have MuseScore 3.1.0 vanish on me at least six times, if not more. I haven't found an exact step-by-step means of reproducing the bug, though it does seem to have something to do with the time duration since the last save, and the number of "corrections" I've done since then. I've been through several new scores, so it's not an issue with any particular MSCZ file.
TBH it's kind of like the bomb attached to THAT key on the piano in old cartoons. Poke, poke, poke, poke, POOF! Funny on TV...not so funny in the workroom.
OS: Ubuntu 18.04.2 LTS, Arch.: x86_64, MuseScore version (64-bit): 3.1.0., revision: e26f7c4