I have fixed myself last time, try to exclude the user from MFA, wait a few minutes, and test via an in-private session that it is really off, then click on "Fix now", it should stop pop-up, then reboot PC once, then enable MFA back. Then for the test can revoke the MFA session of the user, it should trigger again the "Fix now" from "Shared account experience", if the issue appears again, then try the un-join device, delete user profile from Advanced System Settings (so user folder gone c:\users{username}), and then join device back.
Windows 10 | Feature Update 2004 | Shared experience settings | Azure AD Joined device
Oscar
142
Reputation points
Hello,
I have Azure AD Joined + MDM managed device + Azure cloud MFA enabled for user.
Recently updated PC to the 2004 Feature Update,
After the update cannot fix accounts under "Shared experience settings", the authentication screen appears for less than a second and then disappears and loops many times.
Anyone experience the same issue?