I'm having same issue. There's no pain, just a snapping noise and feeling. Funny thing is, it dosen't happen when I OHP, but happens every other time during the day while doing basic movements. It's driving my crazy. It started two months when I decided to go really heavy with low reps for OHP. I stopped OHP and tried using just dumbbells. When that didn't work I stop all pressing and just did some rear db rasies and facepulls, but it's still there.
I'M really hoping BBB will chime in here!