I have this problem for some time. Whenever I open video on my source monitor, both my source and program monitor freezes (I can only hear sound). Basically I cant use source monitor, because I'll need to restart program every time I use it.
I updated my graphic drivers, premiere pro is updated, windows is updated..
I have Nvidia RTX 3070ti, intel I7 10700k, 2x 16gb hyper x fury 3200mhz.
Make sure you have the latest Studio drivers (not the gaming drivers) from Nvidia's web site (not from Windows Update).
Perform a clean install of the drivers for best results.
Is Jeff's suggestion a helpful solution?
Please let us know.
Thank you Jeff, it fixed the problem!
You're welcome, and thanks for posting back that it worked!