pan04-1 set seperate relay error

[cdx873v]

Hi!
I have a problem with setting the icons in homey to control the different relays individually. When i add a pan04-1, i get 3 icons, or buttons. its supposed to be relay 1, relay 2 and relay 1 & relay 2. one of them turns on one relay. the other two just turns on both. this is a problem for me, as i have one huge lamp on one relay and another small pir light on the other.
if i enter the settings tab, there's an option to chose witch relay to use. but when i try to save it, i get an error message:

"failed_to_set_selectedRelay_to_1_size_1"

is this a bug? or am i doing something wrong here?

best regards
Patrik Engborg
Sweden