Hi @john john Pter ,
Thank you for posting in this community.
According to the description of your question, it is true that you should no longer be able to access the site when the clearance is removed, but unfortunately I did not find an answer to this question.
However, I recommend that you remove all permissions and re-add the permissions you kept. Finally, remove the other previous retention permissions. Then see if the problem persists.
1.Delete all permission.
2.Add permissions which you kept.
3.Under Configured permissions click on Grant admin consent for -organization name.
In the panel on the right, select No, remove other granted permissions and click on Grant admin consent at the bottom. In the confirmation dialog that appears, click Yes.
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