The UV islands seem to have been mirrored incorrectly somehow.. Was this unwrapped in Blender? You can try fixing it by selecting each island one at a time, then mirror that island on the X or Y axis (whichever corrects the direction). Obviously, once you mirror the island it will cause the numbers to appear backward in the UV editor but correct on the model. So, you'll have to remove the numbers and replace them once the islands are mirrored on the proper axis.

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