Ahh thank you all for the warm welcomes back!!
Ame88, I believe it was a mixture of incorrectly packing objects into their own groups while simultaneously using the groups that came with them, as most of the objects I used were modded in, simply having too many objects in one map (I wanted it to have about the same visual detail as Skyrim) and trying to export it overloaded the game's memory or some other factor. I did try to go in and reexport it several times, but it had the same error and eventually the map wouldn't load at all, so the files themselves had become corrupted and were useless.
Morqque, Likuu: I accomplished it last night!! Unfortunately it makes use of a program called Antimicro that isn't very user-friendly as it's still in development. Plus, I'm trying to map it so all buttons have functions. Of course, you would only be able to move, use your character's power (flight/dash), swim/fly up and down, move the camera, etc. You wouldn't be able to type or anything like that without a keyboard. I wish you could use the d-pad to select and highlight buttons and then use X like a mouseclick, but sadly I do not think that Feralheart supports that in this version of OGRE currently. I think I'll post the tutorial with screenshots in the Miscellaneous Tutorials section tonight or sometime tomorrow.