Which mods are you loading?
If you’re using the Working Title G1000 Mod and this is happening on a specific aircraft, pull all the other mods that are aircraft specific first, restart and see what happens.
This is one of the hazards of having too many mods. At some point, you will need to deconflict because they stepped on each other. If it’s half a dozen, okay, NBD. If it’s over 50 GB like some people 
well…