IKEA BILRESA Matter Button 👈 [Blueprint] for Ikea *Matter over Thread* Button (Actions, Scripts, and Entities)!

Thanks for this blueprint!
I have two “Rodret” remote controllers in my home. They both control lights in my livingroom.
But - one of the configured automations does not work with reducing the brightness (off_hold_action). At all! I have the exact same config (checked the yaml code). The only difference is the entity name.
But one works, the other doesn’t.
Is there an idea on how I should debug this issue further ?

Thanks for any help!