Hello @Андрей Михалевский ,
Here is my suggest.
Test 1
You can try to add another user into group adminKYA and then check if the new user in group adminKYA has local administrator right on one machine.
Test 2
Please add group adminKYA to local Administrators group via Preference\Control Pannel Settings\Local Users and Groups GPO.
Then check if the user in group adminKYA has local administrator right on one machine.
Hope the information above is helpful.
Should you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou
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