Hello,
Thank you for posting in the Microsoft community forum.
May I know if you have recently done a Remote Desktop client version update? Was the Microsoft account able to log in normally?
According to users feedback, when the Windows Hello login option is enabled on the device, Remote Desktop login may fail due to delayed synchronization of Microsoft account credentials.
The picture you added seems to be invalid, you can re-upload the picture in the reply, please be careful to block personal information.
Best regards
Jacen