so once upon a time I made a really cool character for my game project and he looked great. Then at some unspecific point in time, my character's UV seams got these awful white outlines around them:
I assumed the problem was that during some texture revision, I didn't paint past the island seams, so I compared the texture file with an image of the UV output, but in fact I did paint past the seams, so that isn't the problem. I have heard that this may have something to do with antialiasing, but I don't want to turn that off if I can fix the problem another way. Also, notice that the enemy character in the above gif does not suffer from the same problem.
What could be causing this? How can I fix it?