Aircrafts tail numbers

[lucienpa]

Hello,

Not long ago i discovered PLAN-G . and i find it FANTASTIC free flight planner and map.

My question is : When were parked at the gates the tail numbers of the planes on the map doesn't match or doesn't synced with the FSX tails  planes numbers. Am i doing something wrong or doesn't understand yet or is it just like that for the fun of it that the airplanes on the parking gates are not the same tails numbers ?

thank you very much for your support and information.