My TCA Airbus Sidestick has a slight offset with the calibration to the left. I noted that when flying the A350 with the autopilot engaged that the aircraft flies perfectly, but the aileron on the wing is slightly displaced from its neutral position as a result of the offset. In fact, if I slightly push the sidestick to the right, the ailerons go back to neutral position, but it does not affect the aircraft. I haven't seen this when flying any other aircraft so I'm assuming this may be a bug in that the sidestick controls are still active?