So I upgraded to 15.3 and now I'm having performance and sync issues. It's not actually out of sync it's a playback issue. I'll be in my project scrubbing around footage and all of sudden it's no longer playing back in sync. I can hide premiere (not close just hide) and bring it back right way and then I'm in sync again. Repeat. Driving me mad. Can't seem find a solution. I have an BM intensity extreme, but tested not using extreme and had no effect. Same issue. Same issue with different footage. It's obviously some sort of performance issue. Thoughts! Thanks!
Mac Pro (Late 2013)
3.5 6 core
32 gb of RAM
Media on thunderbolt lace drive