I just spent a few hours working on a PSD document. I saved and closed it, worked on some other stuff, and then needed to make some changes to the PSD a few minutes later, but now I get the message saying that it's not the right kind of document.
I've never seen this issue before, and I never changed the file type. I can see the preview of the PSD in "Recent" on Photoshop, but it doesn't open.
I made a copy of it, changed the file to a PSB, JPEG, etc. but it's always the same error.
Did the file just suddenly become corrupt? How could that have happened?