I did test this with 1.1 and 1.2 version. I think problem is this bug https://forums.flightsimulator.com/t/ai-aircrafts-misses-taxi-pathways/633937
and they actually did depart, but wrong direction that MSFS was wanting them to depart. And if you park west side of airport, they depart more. East side they wont depart because some bug.