@Wahid Hammami,Thanks for posting in Q&A.
For your issue, here are some methods you can try.
1.Re-assign to the user licenses.
2.Please be sure the license is required.
https://learn.microsoft.com/en-us/windows-365/enterprise/assign-licenses
If the issue persists, it is suggested that you open an online case to get more help.
https://learn.microsoft.com/en-us/mem/get-support
Thanks for your kind understanding.
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