Same actual dimensions, same dpi, same bit depth… different pixels? WTF?
I'm losing my mind. I've only been using Photoshop for a little more than 20 years and all, but…
I have two files. One (created a while back) is 8.5 in x 5.5 in at 300 ppi. I created a new file where I wanted to copy imagery over to it in the same dimensions: 8.5 in x 5.5 in @ 300 ppi. Yet the older file is 2550 pixels wide, and the new one is 6477 pixels wide (forget about the height; it's proportional on each). I figured the new one must be set to 16 bits. No. I can find nothing different between the two files. I know from YEARS of work that 2550 is correct. Any idea what is going on or how to make it stop?
One odd thing that sort of worked but doesn't really solve the problem is that if instead of choosing CUSTOM and putting in 8.5 x 5.5 I can choose U.S. PAPER and then change the dimensions. Then it defaults to the right pixels. Makes no sense, but See the screen shots below:


I didn't change it to pixels, because I'd end up uploading four screenshots, but note the file size. 8.5 x 11 when I put the dimensions in myself is 155.3 MB, while if I choose U.S. Paper, it's only the normal 24.1 MB. Trying to figure out if this is a bug or something got messed up in some setting.
