Heading into today's 14951 build for PC and Mobile, we wanted to make you aware of a known issue that is new to this build. Here's the details:
If you sign out or disconnect your Microsoft Account from common applications (Feedback Hub, Groove, MSN News, etc.), you will not be able to sign back into these applications.
If you are already signed in to your MSA before updating to 14951 and using these applications, you should not be affected after the update is completed.
This was a regression bug we discovered during testing. While it is painful if it, most users will not be impacted.
Most users will not need to take action as they will not hit this bug. If you do encounter this situation after signing out, you will need to wait for a future build with a fix before using these applications once again.
Note: We have not yet tested doing a device reset to see if entering your MSA during OOBE bypasses this issue.
This bug will be addressed in a future flight.
If you have any questions about this bug, please share them below.
Thank you as always,