SgtT,
I think that Blackbird's and Willy's suggestions are the solution to the problem. I'll bet your aircraft.cfg file is not in sync with your texture names.
I'm sure that you probably know all of the following, but it won't hurt to check.
[fltsim.0] <<<--- these numbers should start with 0 and then ascend IN ORDER (0, 1, 2, etc.)
title=He111H6 III/KG3
sim=He111H6
model=
panel=
sound=
texture=KG3 <<<--- Folder name will read: Texture.KG3 or whatever the folder is named
checklists=He111H6_notes
KB_checklists=
kb_reference=
atc_id=
atc_parking_types=Mil_Combat
atc_parking_codes=
ui_manufacturer=Heinkel
ui_type=
ui_variation=KG3
visual_damage=1
description=1% Solution AssemblyLine Version 2.79.45\n714VFTS & William Tell© Competition Certified\nHe-111H6
This is one of those planes that always seems to be in my hangar, both in CFS 2 and FS 9. Probably because of all the texture sets available for this plane.