[Solved]Bug on model when export from babylon

I exported a model from Maya using babylon plug-in, then I exported again on babylon sandbox, and occured a strange bug

The original

Can you share a max file we can use to debug
Adding @guillaume_pelletier

I solved, I exported again, and the model turned back to normal.

It was your very first export of the model ?

No, I tried before, and was the same issue