Different kind of default generic airport terminals?

Over the last days i saw different terminal buildings being used at the same
airport.

Above iamge shows the
more “detailed” termianal of RJBB loaded in the editor. When building and
exporting the project I end up with follwing building after loading at the
airport: The project was
original developed with a 3rd party tool (ADE) so i thought it might be caused
by that. So i did some tests and during one of this i found a similar issue.

  1. Spawed at EDDF 2) Teleported to EDDM → Terminal was “blocky” like in 2nd
    image 3) Returned to Menu and spawned in EDDM 4) Terminal was “detailed” as in
    1st image (EDDM was 100% default, no 3rd party content loaded or cached)

used SU8 Beta, but had the issue at RJBB before as well

Ok update on this one after todays World Update: Got the Update, installed it
restarted the Sim. Dev-Mode enabled i spawned at LEPA and got this terminal:

Open Project Editor and created
a new Airport for LEPA i got this terminal:
There has to be something wrong
here.

short Update: Playing in Scenery Editor, it seems the 2nd terminal “detailed”
is flaged as “OSM Building”, when adding a Polygon and exlcude OSM Building it
gets removed.