MSFS GSX A300

[vaudes]

Hello to the team,

I am new to GSX but I meet some problems where GSX works partially on A300 PAX and works OK on A300 Freight.
When I say partially, means I am able to request puschback and some service, but stairs are not visible even if GSX says it has operated.

ANybod have faced this? What is the solution?
 

Thanks.