Hello,
Today after using the GSX pushback (2.8.7) and attempting to taxi off the ramp, the aircraft was stuck and would not move no matter how much thrust I tried to give it. I attempted to use the A321 LR from LVFR/HorizonSim and can confirm that my parking brake was off and there were no other obstructions when attempting to taxi. Additionally, after GSX pushback I was unable to move the aircraft when trying to move it in slew mode (Y key).
I repeated the scenario with GSX disabled and using the aircraft's pushback system in the EFB, and there were no problems with the taxi.
Thanks very much,
Jose