I was working on a project in Premiere Elements 2020. It crashed upon re-boot the timeline was empty and the auto-save files (all 10) are empty. What????????
Update 5 hours later. Found an auto-save version of my original timeline that was about 4 edits behind, so I started again from that point. Manually saving after each edit. Nervous. SO!!!! it just crashed again!!!! NOW I LOST THE LAST 4 HOURS OF WORK MANUALLY SAVING AFTER EACH EDIT. Can't really go any further until this is solved.
Thanks for your response. I don't really know what to add. I started a project was editing no worries. Auto-save was engaged. The app crashed and when I re-opened the timeline was empty. Went to the auto-save files and the last three were empty as well. No clips. The 4th one back in the Q had a timeline that was a few edits behind where I was. I went on from there, carefully saving manually. Then hours later it crashed again and again, I lost like 3 hours of edits.
Maybe disk space? Maybe memory failure? Premiere Elements works well on too many machines to assume that there is a consistant, predictiable bug that causes crashes like you have. It makes finding a solution hard.