In reply to MrTumnus:
It felt like it slid?
Worst case- stud thread stripped, means it could come undone very easily. Unlikely I would have thought as the studs are usually a pretty decent size.
Maybe- Stripped thread on the filter. Just put a new one on
Best case- it’s just tighter than it needs to be and it will be fine
I almost always overtighten mine by accident and then have to destroy them to get them off! If you’re worried enough to post on here about it go and take it off and check