Uninstalling and reinstalling on my phone (Samsung Note 20 Ultra) didn’t solve the issue unfortunately.
Looking again at one that i did have a problem with, it seems that is still a problem. my suggestions have worked for every other faces, not that its a solution but you could try deleting the face and trying to make it again new. I cant say it will fix it as I said there are just bugs that happen from time to time and its a face to face situation when something like this happens …its what we as consumers get when too many people are shills for comapanies that are suppost to work for us not the other way around.
This color difference error that you can see on the watch happens a lot when images are exported in CMYK instead of RGB… when you export images from other editors, check that they are coming out in RGB, even many faces that you find in the application can see that they have this error and it is because of that that I commented or at least in most cases