videos won't play

Tried a fresh login on a private browser session with 0 extensions and cookies and it only temporarily worked, before the usual problems of kicking me out of various videos arose.

I didn't change ANYTHING with my browser or extensions in the last months, and yet the problem started around a week ago out of the blue, even with videos that I have watched plenty of times without problems in the past.

I am on firefox. The problem seems to be especially strong on longer videos, with some shorter videos being able to be played, but also buffering longer than usual and expected...

This whole thing doesn't sound like user error to me tbh. Especially because clearing cookies or changing to private browsing only brings temporarily relief. And multiple users on here having the same exact problem-description, around the same timeframe.

Sounds more like the preview-player function got messed up on dropbox end, as its consistently and reproducible happening over multiple sessions.

I am actually a paying customer with monthly subscription, which sucks, if the problem isn't going to be investigated and fixed this month, I don't see a reason to not cancel.