If I delete a profile off quest 3 and then re-add it, will it likely fix login errors within any apps?

So RecRoom won’t let my son’s account login and comes up with this message. I tried his logging into his brothers account on same meta profile same error with that log in.

So two seperate RecRoom accounts attempting to login on the one meta account with the same error message.

I then got him to log in to his own account on his iPad and he did that no problem.

I then went on to his brothers meta account on the same headset and logged into