What's the reason for being unable to move after releasing the engine brake?

[FXMX198527]

What's the reason for being unable to move after releasing the engine brake?

[Silo01]

The chocks are erroneousely still applied, so you need to set the ready for takeoff state in the tsblet to be able to move. The bug has been introduced by SU2 as far as I know

[Silo01]

And it has still not been fixed in SU3