Whenever I edit a multicam sequence, toggling Multicam on in the program monitor makes the timeline unbearably unresponsive.
I'm on an AMD Ryzen Threadripper 24 core 3.00GHz with 64 GB of ram, and a NVIDIA GeForce RTX 3060. To be clear, on this exact same station for two years I've been able to edit 5+ cameras 1080 or 4K in multicam to the beat of a music track. Then this update and even two cameras, prores lt proxies 720p at 1/4 quality playback and the multicam timeline will continue to playback despite using the spacebar to pause. The lag is immense, sometimes playing through the entire timeline before I can control Premiere again .I'm on 23.2 and this has been happening for me since 23 was released. If there is a fix for this in the works I'd love to hear about it. I might have to revert my team to 22.6.4 in the meantime and see if that fixes it. There are several other people experiencing this issue in a thread here.