The Lanc skin is my 463 Sqn RAAF one, skin number LANC30104172013.
Also the grey Yak-9U is my 6 GvIAP one, skin number YAK9U0111252013.
This effect did not show up in the viewer or the game offline before I submitted it but I haven't checked the skins online. It looks like the game has applied 100% specularity and environment effects to the skin. Did you have bump-mapped skins turned on or off? If turned off the game has ignored the material.txt file, if turned on it has ignored the bumpmat.txt or the spec map files.