Photoshop corrupts files.

is your ps version 23.4?

if so, rollback to previous version(23.0~23.3.2), or update to latest version(23.4.1~23.5)

23.4 version make data loss on your image.

https://community.adobe.com/t5/photoshop-ecosystem-bugs/p-strange-color-box-with-data-loss/idi-p/13003352

Hi! Sorry to hear you are having this problem!

What version of Photoshop are you using? 

Try unchecking Use Graphics Processor in Preferences>Performance. Then restart Photoshop and open the file to see if the problem persists. If it fixes the issue, then you need to deal with your GPU. Here is some helpful information if it does turn out to be your GPU card. https://helpx.adobe.com/photoshop/kb/troubleshoot-gpu-graphics-card.html

Let us know if it works or if you need additional help.

Michelle

Let us know what happens.

Michelle