About training colored models (how to preparing colored .ply files)

[green-slime]

Hi, thanks for your great work in SCANimate!
I'm trying to train colored model following the guidance of issue #12, but I encountered a code error with my own .ply files. The traceback said that:
"RuntimeError: einsum() operands do not broadcast with remapped shapes [original->remapped]: [1, 23779, 3]->[1, 1, 3, 23779] [24, 6890]->[1, 24, 1, 6890]"

in which "23779" and "6890" has nothing to do with my own mesh. I'm sure that I've redirected the config file, so I guess my colored mesh has something wrong. I generated it with Meshlab from .obj files, and export as colored-vertex .ply files; its vertex lines looks like this:

could you please told me that whether I prepared my .ply files correct? And how to export the correct .ply files using Meshlab? Thanks again!