Thanks for lettings us help you on this case. I would like to do a quick test case to see if I can reproduce the issue you are experiencing. So far I am not sure if this is a problem on our side, but I want to make sure.
Can you tell me more on how you access OneDrive in this case? Because I do not think it is the web interface that will prompt you for credentials update, so is it the app or desktop sync tool or something else? And can you see what version you are using exactly?
I am looking forward to your reply, and hopefully we can solve this or provide your users with a good set of instructions.