Faulty file permissions on quick export
Recently, Photoshop has started assigning fault permissions on quick exported .png files. They lose their inheritance property when they are saved. This causes the file to be marked with access to only the current user. I then have to use NTFS permissions to re-enable the inheritance as the application using the image, which has different credentials to me, cannot see the file.
I have seen that a long time ago, this same issue started occured, disappeared for a few years, and is now re-occurring.
Without many more specifics, there’s not much we can do.
Kevin Monahan commented
This User Voice portal is for Premiere Pro, you may want to try here for your Photoshop problem: https://feedback.photoshop.com/photoshop_family