I suggest referring to this thread.
The mod only works for generic AI planes. I have a bunch of Liveries and I modified the NEO system.cfg to get the lights working in all of my 3rd party NEO liveries. It’s not perfect. Since I am a VFR guy I fly smaller aircraft and seldom airliners.
Anyways the instructions are posted in the thread I linked above to get lights working with 3rd party liveries. I am hoping ASOBO will fix the light and “no departing aircraft” problem with the next update.