RTS remote (SIMU) is recognized in Home assistant (RFXCOM) but shutters do not respond

Hi,

I’m new to home assistant and recentely bought a rfxtrx for my two shutters and sunscreen.
the shutters are controlled with a simu remote 5 chanel remote. And the sunscreen with a tellis remote. All using the RTS protocol (i have even added the sunscreen to the simu remote).

I followed te instructions for the rfxcom integration and in the RFXmngr everything works.
I can add both shutters and the sunscreen to the RFX com integration. But only the sunscreen responds when i try to control them with home assistant.

The only thing i can think of that is has something to do with the remote. Can someone help me?

Greetings,

Huub