Right. So that's why you don't want to convert file to PSD unnecessarily. Stick with "original".
To help me sleep better tonight, can you please do this check?
Well, not perfectly smooth, but yes, I think we could improve it.
Go ahead and do your raw processing, then post it again and we'll talk about our options.
That was actually one of the very last layers I added. After all the gradient ones, I went back and put that in there, then fiddled with the sliders to make the area match the new background.
Weird. Have you noticed this behaviour in any other program, or in your operating system?
You mentioned it's a laptop. Are you using a mouse, or the trackpad? Either way, have you tried the other, to see if the same thing happens?
It's so important, you know? We can never trust any form of digital storage to be safe ... in fact, it's best to assume that every drive could fail tomorrow. So never keep only one copy of your important files.