Because iniBuild's liveries that are on the iniManager are not necessarily done by iniBuilds staff nor have approval from Asobo or the airlines they are representing.
I believe this is in the merge GLTF model provided for liveries. Will the fix mean that all liveries need to be updated? Or is this from the base product where an animation is not referenced?
Can confirm deleting Scenery Indexes does not fix the issue. I'd assume that most recent update has played with your inhibit area for default scenery but interestingly enough, reinstalling the Asobo handcrafted scenery also has the default AI buildings there too.