So you are using the Fenix, you didn't said that. In that case no, it surely doesn't happen here ( the Fenix is the most tested airplane ), so please provide precise, exact reproduction steps, because the Fenix is not only the most tested airplane by us, but it's the most widely used airplane in GSX, and nobody else is reporting this.
Reproduction steps means every detail about the situation, the airport used, the gate used, the airport profile in use (if one is used).
As an example, if you are using the wrong profile for an airport (or the scenery has been updated in the meantime), it might include custom pushback routes which are not valid for the scenery you are using now.