JUC Old Closure popping open

Hey everyone, my JUC with the old closure has a tendency to pop open and I'm very concerned.
It's happened twice within the last month - yesterday when I was taking off my jacket I noticed my JUC was open and about to fall off my wrist.
The first time was when a stranger's bag strap got caught on it and pulled it open.
However - when I try to take it off myself it's still super difficult to open..
It reminds me of James Charles' story about how his just flew off.. (story starts about 3 minutes in)

Does this happen to anyone else and if so what can be done about it?