Relay switches off after running xxx.turn_on action while it is on

Not sure if this category is right, but at this point I am not sure if this is relay, ZwaveJS UI or HA.
I have multiple Fibaro FGS213 relays (Single Switch 2) controlling light. I set all those as controlling light, to be able to run light actions, although I don’t think it matters as behavior is the same when I use switch actions.
My problem is - relay/light correctly switches on/off and status is displayed in HA accordingly (on both relay and light). But when I run action light.turn_on (or switch.turn_on) while light (switch) is on, it turns off. There is only one relay doing it, no other relay does it and stays on when the action xxx.turn_on is fired.
I tried re-interviewing the node, but that didn’t change anything. Anyone may have a clue why this is happening, or advice what may fix this unwanted behavior? Thanks.