Remove-RDMUser ID Parameter - Value cannot be null. Parameter name: collection

Hello

I tried to delete a user and used
Remove-RDMUser -ID $user.ID
But everytime I try it it gives me:
Remove-RDMUser : Value cannot be null.
Parameter name: collection
But there is no "collection" parameter in $user nor in the cmdlet.
As a workaround I use the Remove-RDMUser -User $user command and this works fine.
I don't know if its me or a problem with the cmdlet.

PS Version: 2022.3.1.2
RDM Version: 2022.3.30.0

Best regards
Rolf