Email filters getting deleted

About 2 days ago, all of my email filter rules got mysteriously deleted with no indication of what caused it. I remade all of them since I couldn't find a way to restore them. Fast forward to today, and they have disappeared again. Searching for this issue I found a recommendation about clearing the cache, which I tried and did not bring them back. I've had my email filters in place for 4+ years now and they haven't done this before, if there is an explanation for why its happening now, I'd much appreciate it.

If possible I'd like to know if there is a way to restore them and save me the trouble of remaking them again, and any steps I can take to prevent them from disappearing again in the future.