iMac 13,1 with Sonoma glitching on wake...

I've had a search but not found anything. The most regular issue I seem to have with Sonoma / OpenCore is that when the display sleeps and I wake it, it goes really glitchy almost like viewing through a kaleidoscope, I can sometimes move the mouse to just enough get to the reboot menu and then it books back up fine but it's really frustrating.

Is this a known issue? Has anyone else had similar and figured out a fix? Thanks!

submitted by /u/BN83
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