@Rick B Thanks for posting in our Q&A.
To clarify this issue, we appreciate your help to check some information:
1.Did you deploy the app protection policy to a user group?
2.If yes, please check if the app protection policy is successfully applied to the managed apps under Apps > Monitor > App protection status > select the Assigned users tile > select the target user. For example:
3.Please make sure that you use the target user to sign in the managed app.
If there is anything update, feel free to let us know.
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