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NGX 738/900 overhead switches turning on and off after loading plane P3D V5

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    NGX 738/900 overhead switches turning on and off after loading plane P3D V5

    When i load up the NGX 737 800 or 900 in P3D V5 , various alarms go off and i can see various overhead switches turn themselves off and on repeatedly, like the fuel pump switches and and fuel pump switches, amongst many others. I uninstalled and reinstalled the airplane and it continues to behave like this.
    My specs are an i-7 10700K Nvidia 2080 16GB Ram

    Thank you for any suggestions

    Michael Fisher

    Just so you know, the NGX was never made compatible with P3D V5, nor will it ever be. The NGXu, which replaced the NGX, is P3D V4 and V5 compatible.
    Captain Kevin

    Kevin Yang


      My bad. I have the NGXu installed


        Okay, first, were you using a panel state. If you were, you may want to try the default engines running state to see if it's a corrupt panel state issue. This will automatically happen if you don't have a start-up panel state selected. If you have one selected for start-up, just delete it, then load the simulator again. If the problem still persists, you may want to submit a support ticket at If you haven't done so before, you'll need to create an account since this is separate from the store account. Also, I know you signed your name in your first post, but PMDG requires you to sign all your posts. You can set up a signature via the following link, so you don't forget.
        Captain Kevin

        Kevin Yang


          if they keep switching on and off by itself then its is a problem with your license. I guess it is not activated or deactivated properly. Either way imo you have to contact pmdg support and open a ticket.
          Matthew Chalupniczak