How did Photoshop destroy my source?

Question

Adobe Photoshop

Worked on the project for almost a month. I saved the file, closed Photoshop, rebooted, open it and here it is.

All layers merged into one and annihilated into some kind of glitch art. How did it happen and is there anything you can do about it other than hang it in a frame on the wall?

Answer 1

How did Photoshop destroy my source?

In the most incredible, terrible and offensive way, obviously.
I think it's probably a problem with the HDD or you rebooted quickly and the file didn't save completely.
Try some data recovery programs, it may help, but there is no absolute certainty.