DV2901 A Tuck, Roll and Flex - Exporting

I went to go export my model and put it into Mudbox by exporting the selection as a OBJ, but i had to make sure the I went to window - setting / preferences - plug-in manager, and tick loaded and auto load on the objexport_bundle.

Once I did this, I was able to export it, 

but it kept coming up with problems about the mesh. I need to go through my UV map to make sure that it was not overlapping. I clicked into it and it looked like this.

but I got told my tutor to click the Automatic mapping option under create UVs and then it created this, which solve at a lot of problems that appeared in Mudbox. 

When i imported it into Mudbox it decided to give me red lines on where the problem in the mesh were; even tho in maya it looked fine there was still an invisible problem.

This is what I found on the hands. The edges are not all connected and lined up so using the interactive split tool i was able to connect all the edges together and make it complete, and once I done this and re exported it, it worked fine with no problems.