NVidia Control Panel Crashing

[pastel nebula]

Can't find any posts similar to this, but using RTX 2080 TI, 4 monitor setup, windows 10

3 monitors are 27" 1080p lg ultragear gsync compatible, 2 are using displayport, other is using hdmi with a displayport adapter as my displayport cable wasn't long enough. 4th monitor is a 77" LG CX OLED 4k Tv that I'm running a 100 ft fibre optic hdmi from my GPU to the tv (made sure each side was plugged in correctly).

Under change resolution in control panel, any time I click use NVidia settings instead of default, NVidia control panel crashes. It used to work fine. This is my bigger issue currently. All firmware is updated, I tried reinstalling all drivers, even tried switching to studio drivers, but nothing seems to work. I'd really like to be able to use the NVidia settings.

It specifically crashes upon hitting apply. A few times yesterday, on the monitor with the HDMI cable from monitor to DP Adaptor on source, hitting apply not only crashed it, but also messed up all the colors (almost like a hue/contrast issue, with everything becoming extremely bright and blurry on it) on that monitor, but upon relaunching control panel, it was still unapplied despite those changes staying. I had to restart my computer for those changes to go away.

[pastel nebula]

Just used a DDU and am trying to reinstall now. Hoping this works. Can't figure out what specifically would cause the program to crash on changing from default to nvidia settings...

While that did fix an issue I was having with GeForce Exp app, it did not fix this issue. I can select the settings, change them from limited to full and things like that, but as soon as I hit apply, control panel crashes

[pastel nebula]

I'm bumping this. Just upgraded to a 3090 and I'm still having the same issue. Unsure what else I can try.

[regal lion]

Have you tried doing the exact same thing, but with only one monitor?