It is the entry door ( where the gates dock ) that shows problems, it opens but it don`t closes, it closes only half
and stays there and do not move anymore.

Only this ADD opens the door at all :
https://de.flightsim.to/file/15033/toolbar-pushback

..but cant close the entry door as mentioned.

The inbuild MSFS ATC Groundservice docs on the plane but do not open the doors before ( it does on the other planes )

I will try some more couple of things and will post a screenshot later or tommorrow..

cheers  ;)