I usually use three minecraft launchers, the official launcher, curse forge and prims launcher plus prims launcher since it gives me very useful options but I have this error even before using the prims launcher, my account is only I have access to it, I only have it on cell phone and pc and if I recently changed the password eh even activate the double secure.
Effectively if this error is being reported since 2022 and it is already 2024 and it has not been solved since I have the same problem and I am stressed about not being able to use my skin, there is a solution available or a patch will be released to solve the error.
I know they don't work with launchers, which are not official, but the problem was already there before using another launcher.
It seems that now it is solved because I haven't changed the skin since this morning.