I have been facing this issue with adminconsole user account. I have an adminconsole account where I can add users. For some reason, they are recieving an email saying "your administrator for _ has removed your access to __". This seems to be done automatically from Adobe's end and I am unsure why. I am not removing the users whatsoever. These emails will appear ranging from 5 minutes to a few hours after adding the user. I have tried to contact Adobe and they unadded and readded the accounts on their end, but this did not resolve my problem. Any help on resolving this issue would be much appreciated. I have tried running the Adobe Fix tool, reinstalling adobe apps, reinstalling creative cloud, but these don't work either.
Please confirm if you are using any sync tool to manage the users in the admin console (like User Sync Tool, Azure or Google Sync).
You can check the Audit Logs in the admin console to get more details.