hi can fix this problem with out change the uv in maya
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It is due to your UV map seam. The only way to fix this is to Delete the UV and start again but this time put the seam around the whole side length of the blade.
The whole UV map is horrible so starting again is a no-brainer but you should never use an UV map like that in a game (Badly placed seams). It would take me a whole 2 minutes to fix that UV map so it isn’t that hard.