Mac Studio M1 Max lag when editing multicam

[Raul295096471kzx]

Hello, I hope this message finds you well.

I'm using Pp23.3.0 (build 61) with Mac Studio M1 Max 32 gb memory. Ventura 13.3. Has lags when editing multicam sequence after 5 minutes editing. Only audio plays as it should. Tried proxies QuickTime ProRes low resolution but the behavior is worse. The machine is not able to play sequence. Also tried sequence settings QuickTime Prores 422 proxy without positive results. Media been in external ssd or in the machine don't make any difference. Deleted media cache don't helped neither. Original media is Hd 29.97 rate 32.20Mbit/s codec mpeg-4 aac, h.264

Do you have any ideas how to find a solution. Thanks in advance for your help. Best !

[rjkunc]

I have similar issues happening on M2 Max with the PP23.3. For me, it seemed like when I would lay in a mogrt graphic that the timeline would stop updating the video playback. The audio would play, but the playhead would not move and the video would stay on single frame. Even if I moved the playehead, it would still stay on the same frame. After a day of headaches, restarting Premiere, I just went back to the previous version and that has no issues. 

[The Reuster]

So my situation was slightly different but I saw a lot of posts about people struggling with Multicam in PP on M1 Macs, so figured I'd post my solution here.

I have a maxed out M1 Ultra, 128 GB RAM using PP v23.6 on Ventura. 

I was experiencing significant lag with MC clips basically every time I did anything, a cut, a move, a trim– anything– I would get the spinning wheel for 3-6 seconds, which was frustrating to say the least. Nobody can work like that. I trashed my prefs and installed previous versions, but nothing worked. 

Finally, through trial and error, I realized it was the MC audio causing the problem. I option + selected all the MC audio (so the MC video was unselected) and flatenned it (right click > Multi-Camera > Flatten). That was it, that was the solution. It hated the MC audio. 

This may not be the most ideal solution, but if you're on deadline and you gotta fly, try this and see if it works. I spent 5 minutes re-linking all the intact MC video clips to the newly flatenned audio clips and I'm back in action. 

Good luck, hope this helps someone.