It only took 2 hours to make the Lump using Seamless3D (due to an error in Seamless3D, 2 of the teeth contain red color).
Anyways, I found 2 problems:
1. When undoing a mistake, there is a small chance of a crash (once that happens, your progress is gone forever as loading it again will crash it).
2. Although it says the exact file formats allowed, I still don't know how to even load in textures to anything (even with the right setup), and there are no video tutorials of that.
Anyways, have a great weekend.