Quote Originally Posted by DennisD View Post
"and does this issue happen with a certain file alone, or is it universal regardless of every file you're creating inside of artrage/copying and pasting or importing an image from an external app? (I see painter blender marks in the background, so, I imagine, this is an imported .psd file?)"

It happens on all of the above. New files. Imported files. Old files. Art Rage 6 files. Vitae files. Jpegs. PNGs. Etc.

I agree with your assessment, it is likely a Mac Chip issue (I managed to get this working without issue on an ancient Intel iMac).

So far the escalated Wacom response has been underwhelming (switch to 60hz instead of 120hz) which, of course, had no effect.

Some strange interaction is going on.

Cheers!
-D
there's a very long alternative solution I can think of which isn't guaranteed to support your cintiq model too (is the current wacom driver, or one before that, still supported by your intel mac?) but you can install parallels virtual machine on the old imac, make a copy of the OS X it has running over there, transfer that copy on your new mac, and run that from inside parallels on your current apple silicon workstation.

it's a bit monstrous installation-wise, but it should at the very least work as it did on the old machine - artrage does not rely on GPU acceleration or advanced realtime GPU filters or anything like that.
I used parallels windows VM on mac about a decade ago to extend painter IX lifespan after the code support got discontinued on mac, and those new versions were not exactly improving things.

this will require you to spend some time navigating the software (it's pretty barebones itself, but the set-up process might get a bit overwhelming), and you'll have to trust russian software currently owned by corel, but if anything else fails, this might work out:

kb.parallels.com/125561/ - the support article outlining the process.