Problem fires anti collision 737PMDG

[kolonaki 1]

Hello,
Small problem concerning fires(lights) anticollision of 737 PMDG. (Fires(lights) on and under cabin)
On a texture (Jetair Fly by ex) those this work correctly (put out(switched off) at the beginning then flash normally after starting up engines), on the other hand on the texture of Transavia those this are lit(switched on) but fix to the starting up any faded engines) and do not work after starting up of engines.
Has anybody a solution to tell me where from comes this anomaly?
Thank you in advance, 
Cordialemen