This is terrible!
I was working on an image, and by pure curiosity I wanted to see what the "sunset" style was all about. Then all the image turned into a horrible green shade. I was expecting a warm-colour balance-style.
But that is not the problem. The problem is that it cannot be undone, UNLESS, and I am guessing here, you have created a Snapshot JUST BEFORE you apply the style.
All work lost! I had to close the image and start from the beginning.
I haven't moved fully from PS to AP because of the lack of Macros, but this problem here... that was it! how is it that a global style has no RESET or UNDO option?