Hello,
We also got multiple reports of this issue from our users, and we found a workaround:
Ask the user to reinstall the app,
Grant screentime permissions
Start shielding the apps that are stucked
Stop shielding them
It seems to allow the app to unblock from user devices.
In our experience, this issue seems to be related to an issue we reported were the Screentime authorisation is hanging, and just accessing the authorisation center is blocking everything. Even the screentime section in settings is not accessible.
Here the bug report : https://feedbackassistant.apple.com/feedback/11833456 opened about a year ago. We got some devices were this issue is present all the time, this issue seems to propagate through icloud, and also causing mal function in DeviceActivity extension based views.
We are glad this got Apple attention because it seems to be major issue that make our users very mad.
Regards