This was all on the 1st floor. But I'm gonna do like you said and leave it for a week and see if anything still leaks.
It’s an easy and cheap attempt at a fix whether it solves the problem or not. It will be one less possibility. My last plumbing leak was a mother****er on the second floor a few years ago.
This didn't occur to me untilharrycalahan posted above, then it clicked. I think y'all are right.

