Colour management differs between projects, same sourcematerial

[DoNi1]

Hey everyone,

i'm hoping there isn't something obvious I just missed, but I am a little lost on what else to try to fix this issue.

i have been working on a couple of photos from one shoot, some basic adjustments so they all match and getting them into Photoshop via edit in (export settings for photoshop 2024: ProPhoto, 16Bit, Tiff) I edited the first batch yesterday and started working on the rest today.

Having some issues with banding (which I still haven't solved, but to doesn't show up after exporting so I ignored it 😅) I looked around and tried changing the working colour profile. 

I continued pasting in overlays and adjustment layers from the previous edits and so far all good.

however
At some point in during editing, I unfortunately have no idea when, I must've created an issuer with the colour profiles.

the image has a blueish hue and whenever I drop the background image in it is highly oversaturated and pinkish. Pretty sure the background is in a different colour space which is why it is behaving even stranger than the rest.

i tried changing the working colour profile, assigning  Profiles and converting to, turned proof setup on and off but nothing worked.

I converted the original image into a smart object along the way. Whenever I double klick open it, it looks just right so it must be the enclosing document that has a messed up colour management somehow.

I'd really appreciate the help. Thank you in advance

(left in the screenshot is the whole document with the blueish cast, on the right I opened the smart object. I can grab more screenshots of settings later, it's a very noticeable difference but due to confidentiality I can't really show more of the photo itself before it's release:/)

Photoshop 2024, Windows 11, RTX 4070ti PNY, ASUS ProArt Monitor)

[D Fosse]

i tried changing the working colour profile, assigning  Profiles and converting to, turned proof setup on and off but nothing worked.

By @DoNi1

Don't do that! It serves no purpose. The document profile is never the problem, but it quickly becomes the problem when you keep changing it without plan or purpose, as it seems you've done here. Don't touch it.

It sounds like maybe you have a bad monitor profile starting this off, but it's hard to tell now. If the monitor profile is incorrect, Photoshop can't display correctly, and so you make the wrong editing decisions.

A monitor profile is ideally made by a calibrator. If you don't have one, generic manufacturer profiles are often distributed through Windows Update. These manufacturer profiles are surprisingly often defective in various ways.

I suggest you throw away this file and start fresh, keeping the document profile untouched. I would not recommend you use ProPhoto until you have more experience. ProPhoto tends to exaggerate all problems because it is so large. There is no reason to have ProPhoto as default for "edit in Photoshop".

If it doesn't look right, replace your current monitor profile with sRGB IEC61966-2.1  for now. If your monitor is wide gamut, use Adobe RGB. But again, the correct way to deal with it is to use a calibrator.