Unsaved score suddenly closed

After finishing a score, I tried to edit its footer text but the document suddenly closed, without any indication of warning. The closed document hadn't been saved and I can't find any backups in the AppData/Local/MuseScore/MuseScore4 folder. There was another already saved file concurrently open, which is still available in the state it was. This file did not crash so MuseScore has not displayed a dialogue box that offers to recover the deleted file. I would like to know how I can recover the score. Attached are some of the logs for my activity.