Trigger from UI is not the same as a trigger from node-red?

I have an interesting situation. I have 2 mysensors controlled led strips. Combined them into a group. I can trigger them, turn them on off, dim them jsut fine from the ui, no issues what so ever.
I have a zigbee xiaomi button, did a simple node-red flow, to control the same light group I did earlier.
When pushing the button most of the times, only one of the light strips turn on, push again, sometimes the same light strip goes off, some times it goes off and the other comes on. going back to ui works as expected again. what could cause this?