CDO
I'm sorry you are still having issues with Spine on macOS.
I tried to reproduce your issue on my Mac, but it does not occur.
The problem might be related to a combination of your ultra-wide resolution and the linear color space. Linear space requires twice the GPU memory compared to non-linear space.
To rule out this possibility, could you reduce your window size to about one-quarter of the full screen (or even less) and enable linear space only after that? If it works under this condition, it could be a hardware limitation.
If it still does not work, we need to know a couple of things to better understand your issue:
Which resolution are you using?
Could you run Spine from the terminal with the --trace argument, like this:
/Applications/Spine.app/Contents/MacOS/Spine --trace
Then share your log file? Using that argument will provide us with more detailed information.
Thanks for your cooperation!
