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Simconnect disconnects immediately after connection is established

Hello everyone, I'm desperately looking for help about this issue.
I had this working on FSX but since I migrated to P3D it stopped doing it.

As title says the problem is I the connection is closed as soon as it's established.
I have my own implementation but to discard any mistake I can be doing I use the example that comes with the PMDG NGX addon.
This is the main loop:

 while( quit == 0 )
        // receive and process the NGX data
            SimConnect_CallDispatch(hSimConnect, MyDispatchProc, NULL);


SIMCONNECT_RECV_ID_QUIT is sent in the first iteration so the communication is lost.
I don't have idea why tho, as I said few years ago I had this working on FSX SP2.

I'm using Prepar3D v4, SimConnect headers and .lib are from its SDK

I'm not really familiar with the SimConnect API, not sure how can I add some extra debug.

Please if there is anything you think it's worth to try let me know, I'm totally frustrated :/
the same issue with you
quit=1 even takes place with the sample code provided in the p3d sdk, so maybe your code isn't to blame