No shortcut works when Focus is running

Hi,
I currently switched from Sysinternal RDCMan to your RDM but I have one massive issue:

No matter what I try, I can't get defined shortcuts to work when the focus is on a remote desktop. I need— as is possible in RDCMan —the ability to switch between different open RDP sessions using a shortcut when the focus is in the RDP session. I’ve checked various forum posts (e.g., https://forum.devolutions.net/topics/55803/ctrl---tab-move-to-last-active-session), but none of them work.