TBM930 - Toggle Landing Lights with key command?

I have a problem with key assignments. If I assign lets say "L" for "Toggle Landing Lights" it does not work correctly. I emphasize, there is no other action assigned to the "L" key in my set-up. If I set LL ON (using the mouse in the cockpit view), I can toggle LL with "L" Off and On as much as I want (it moves the switch and actually I can see LL on and off in the outside view). BUT, If I have set LL Off (using mouse in cockpit), the key "L" does move the cockpit switch to the LL ON position, but actually it does not turn on the LL in the outside view (it only moves the switch forward and backwards). To summarize, when  coming from LL On, toggling works. When coming from LL Off, it doesn't.

I know this is a very small problem but I want to program a multi key command (macro) on my Logitech keyboard for toggling LL, Taxi Lights and Strobes when entering or leaving the runway. I cannot do this when the key bindings don't work correctly. Any advice what I could do. Or can someone perhaps please reproduce this issue?