Beedan, I don't know if your sceneries are installed inside P3D or inside an Orbx Library folder, but I had the same problem at one time when all my Orbx sceneries were installed in an Orbx Library folder. My "FIX" was to install the Open LC NA scenery inside P3D instead of the Orbx Library. I still have all my other Orbx sceneries in the library, including Global Base. Only the LC NA is in P3D.
I don't know if it will solve your problem or not, but might be worth a try. Strangely, my other LCs are in a library and do not cause problem (LC Africa, Europe, South America).
Best regards,