Hi there,
Sorry that Photoshop Beta on Mac running M1 processor is unable to export a JPEG created from a photo stack layer.
Are you able to process and export other files and file formats?
Have you tried exporting a different JPEG file to check if that works fine?
If the issue is reproducible with all JPEG's, restoring the app preferences would be worth trying:
See this article for reference: https://t.co/ulJI7cGn1G You may want to backup your settings beforehand: https://t.co/4dX7gkr36D
Thanks,
Akash