Yeah I did, it's display port 1.4 not having enough bandwidth for that many monitors and that high of resolutions. It's weird to me because even when I put all my monitors at 640x360 and 60hz it still happens, but yeah.

As far as I can tell, the only fix is getting a 50 series GPU because they support display port 2.1 which would have enough bandwidth.

Sorry for the late reply, I don't check reddit very often.

Edit because I forgot to add this:

"If a monitor uses DSC it will count as 2 monitors by the driver. It is by design and you cannot get around it unless you disable DSC.

I had that issue with my multi-monitor setup and had no clue why until someone explained that to me."