Been using PS for almost as long as I've been alive! This is the first time I've had this issue when trying to save a PSD/PSB. I don't get a specific error code so no help there. It just says Cannot save due to Program Error. I have updated, rebooted, uninstalled all versions of PS, re-installed, booted.....still getting the error!
Win10, Threadripper CPU, 1080GPU, 64gb ram, plenty of hd space. Asus mobo. Running latest PS.