I am on Windows 11. I opened Spectralayers 12 and a stereo song file and tried “unmix song” with the “high” quality. The audio and waveform disappeared. I can unmix a song with “fast” or “balanced” but with “high” I have this issue.
I tried this yesterday and had no issues on my Win 11 PC.
It turned out to be a settings issue. Under “system” I chose “processor” instead of “automatic”.
I also changed my “external edits path” away from a slow backup drive to my boot drive.
One or both of those changes made the difference for me.
“Automatic” will try your GPU first, perhaps you have one affected by this bug:
Yes, GPU is way faster than the CPU in most cases.