Program and Source windows play footage with glitches

[kmotion31]

-This doesn't happen right away, just after having Premiere open and running for a bit. But high quality footage always ends up glitchy in the program and source windows. *see photos*

-Additionally, these glitches can sometimes appear when creating proxies.

-Furthermore, these glitches appear only on certain shots when exporting from Premiere. 

Has anyone else encountered this? Is this a Premiere problem, or is my system just getting old? 

SYSTEM SPECS:

Processor: 3.6 GHz 10-Core Intel Core i9

Graphics: AMD Radeon Pro 5700 XT 16 GB

Memory 128 GB 2667 MHz DDR4

MacOS: Sonoma 14.4.1 

Thank you 🙂

[John V Knowles]

This typcially results from the GPU overheating. Is this the Mac Pro (Intel) or the iMac Pro?

If you go into the Project Settings and change the renderer to Software Only, does the issue go away?

[ErekM]

Thank you for this suggestion. I was having the same issue on my MacBook Pro (Intel). Switching to Software Only fixed it immediately.