Hi @Jory A Richards,
Thank you for posting in this community.
Based on the error code in your question, and after a lot of searching, I realized that a lot of users have been experiencing the same problem as you recently.
According to this thread: Unable to sign in to microsoft 365 dev error code 41101
The problem is most likely not due to the account you are logged into, but probably a problem on Microsoft's end. Due to limited resources, we apologize that we are unable to provide you with a further solution in this forum at this time, so we suggest you open a ticket and ask.
Thank you for your kind understanding.
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