Do you use the Microsoft company portal app to authenticate? If so, open it and check to see what it says about your device compliance. Quite possible your IT admin has mobile restrictions affecting you using a beta OS.
Thank you for your feedback. If you haven’t already, Please update Samsung Members app to latest version from the Galaxy store and send us an error report immediately after experiencing the issue from the Samsung member’s app -> Beta Feedback -> Error Reports to help us debug the issue. We apologize for the inconvenience and appreciate your contribution to the beta program.
