Change Case Owner to Queue with AutoLaunched Flow

Hi Guys,

I have a flow changing the Case Owner from one user to another. That work's pretty fine. Now I want to modify this setting: Change The Case Owner to a Queue.

In a first step I get the specific Queue by Get Records on Groups. But when I try to assign the Queue ID here it fails. What do I have to change/extend? (Screenshot ist the running version with User)