Hello pilots, First of all I would like to congratulate the PMDG team for bringing such a complete airplane. I'm still amazed about the number of systems you reproduced.Yet I have an issue that could be related to the PMDG's NGX. Not 100% sure about it, but my problems began since I installed the aircraft.Let me go into detail (I searched this forum to see if an answer was available, but found nothing. Please forgive me if I missed a post about it): Since I installed the NGX, my other aircraft lack hydraulic and oil pressure. Be it with CLS MD-80 or Captainsim 757, my HYD PRESS is often too low to get the aircraft work correctly. Sometimes I have enough pressure for take-off, but won't be able to lower the flaps on approach, and sometimes I can't even put the flaps for take-off or retract the landing gear. I did a flight succesfully yesterday by loading the NGX first and then switching to another aircraft. That is why I think it is related with the PMDG. If it is not, please forgive me for pointing this out, but I'm sure you'll be interested being advised about this possible issue. Thank you for your help! Best regards,Thomas

Little update: The Hydraulic and oil quantities are OK (apart on the CLS MD-80), but I usually get an error about HYD pressure even with the default A321 (even though the HYD QTY is ok). This might help

What are you doing flying other aircraft? j/k