Information - I am on P3D v4.5 (with too much payware scenery) and my layers are all screwed up. I use your Addon Organizer.
I have determined that the majority (if not all) of the duplicates are originating from two sources - one will be from scenery.cfg and the other is - users\name\documents\prepar3d v4 add-ons\scenery name.
Should I disable one of these?
Franklin Duncan