Hello, Pski69
Thank you for your purchase. And yes there is a known bug that if you have an outdated version of the GNS530 mod from the official marketplace , it might not work as expected.
Also some time ago, not to confuse you, but I had released a version of the WTT MOD to go with the Camair for the PMS50 GTN750 mod. Make sure to delete that WTT MOD all together if you have it(probably not).
The Camair has been native to the WTT and was the 1st plane to do so, specifically with the PMS50 mod. The TDSSIM mod for the GTNXI is also update-able. As far as any mods for the GPS units go the GTN750 and GTNXI will not work together if you have them both in your community folder/ addons linker. It’s either one or the other not both. However the GTN750 works with the GNS530 as does the GTNXI, but once again not if you have both GTN750/GTNXI mods installed a the same time. The AP will bug out and the GPS becomes unstable and may cause a CTD if both are installed at the same time - That goes for any aircraft.
Lastly, if you have updated the GPS units you should be fine. If not, then its another mod conflicting with the Camair, this is pretty rare, but I do know some exist.
I hope that helps,
B4Gunner @ Hangar Studios 713