This is why I always add about 15px around each island for bleeding when using the UV map to create textures. That said, I also make sure there's enough room around each island so that the extra pixel size of the texture doesn't intersect with any of the other islands.

Whether or not this would help you in this instance, I don't know. You'd have to try it out for yourself.

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OK . . . Where's my chocolate?

Butterfly Dezignz