Strange bug with teamcolor outline in Classic maps

[Ruler Red Draenei]

Have a VERY strange error and was wondering if anybody had any sort of idea what could be causing it. I have a custom model being worked on for me and found an issue when testing. In some of my maps it entirely glows purple with the team color outline used when making the model, but in other maps it works perfectly fine and the outline is correctly only, well, an outline.

Only thing I can figure is that one of the assets I have imported in some of my maps might be causing the issue, but I wouldn't even begin to think of what that could possibly be. This also seems very inconsistent. Was wondering if anybody ran into a similar issue to help figure this out.

-I tested the model in maps with custom textures and sometimes it works fine.
-I tested the model in maps WITHOUT custom textures and sometimes it is bugged

Is this a problem with the current version of the game, or am I doing something wrong and missing it?

 

[Ruler Red Draenei]

Resolved. Turns out it was probably having TC layers in the same material as the outline.