Command Line (External Application) "requires elevation" prompt

I have a strange behaviour with this session type. We have users for our support and our admin team that have specific permissions in Active Directory. Support users have delegated permissions to specific objects only, the admin team has account operator permissions. We have mmc´s configured for them and we try to start them with the mentiones sesson type.

Display: external
Credentials: Vault
Run: "C:\Windows\System32\mmc.exe"
Arguments: "\\server\share\folder\xxx.msc"
Run As: Current Session

When I do this with the delegated AD Support account, the mmc starts withour a problem.

When I just switch the account to a admin team account (which is Account Operator in AD), I get this error message:



The second line just says, that this requires elevated permissions. But why?

If I change the settings to this, I get the mmc in the context of the admin team account, without the error message!

Display: external
Credentials: Vault
Run: "C:\Windows\System32\mmc.exe"
Arguments: ""
Run As: Current Session

And when i open the msc file from the argument manually, it opens without a problem and everything works as it should.

I am really not sure how this is related to RDM or not, but also when I just start "cmd" it works with this admin team account and the cmd is running in the correct context. Then I can do mmc and open the msc file, without a prompt that elevation is needed.

Brgds Andreas