[Andris6000]

Are you sure that is a "problem", not a "feature"?

Yeah am pretty sure this is a problem because RHAF never flew with these kinds of markings on the tail ...
I never seen it on no photos, never red about such things like this in a book or anything .

Does it do this on the Default skin?

Planemad

Yes it does it on every single skin if the markings are switched on.