I was working on retexturing my mod and run into a problem that I can't solve.
In my previous release, both headlights, tail-lights and brake lights work fine, but I can't get the headlights and brake lights to work anymore.
Below are the lights texture, the mask and the car texture.
When I turn on the car lights in-game, only the tail-lights ignite, the headlights and brake lights (when holding brake button) don't.
I tried toying around with the PNG export settings, transparency and whatnot, but nothing seems to work anymore, even though it worked fine at some point.
The mask colors are properly applied, and the UV coordinates are correctly in place.