My flight: 2024, A350-900, UUEE, gate 134 custom scenery, profile for GSX installed
Plan flight in OIS - UUEE-ULLI
Load with GSX
After finishing boarding - off on the overhead Ext1 and Ext2
On the OIS - Ground - off GPU
On the OIS - Ground - in the GSX menu select "Additional Services", then select - "Dismiss GPU"
On the OIS in GSX menu - Prepare pushback
Jetway - retract and pushback - starting
Sorry for my English, i am in Moscow, Russia