UVs uploading incorrectly

The last few models I have tried importing into UE4 have all been coming out odd.

Instead of having (from 3DS) UV channel 1 → 0 and 2 → 1 (for lightmap)… it is now importing channel 2 → 0 and generating two other UV maps.

I have tried re-importing the FBX files into 3DS and they all appear to have the correct UVs.

Help?