Microsoft has moved to a new sign-in protocol and our current system for signing in with a Microsoft account started failing. I looked into switching over to the new protocol and it seems like a few hours of work. But given that I only have a few hours a week to devote to music4dance that’s really a week’s worth of work. Since I have very few customers that use this login method and the main reason for supporting this method was for Xbox Music AKA Groove Music integration which has already been deprecated, I’ve notified those individuals with a work-around and am turning off this feature.
If you believe that this is an indispensable feature, please provide feedback and I’ll consider re-implementing it. If you have issues logging in with any other method please file a bug and I will do my best to address it.