We're using the Makeclothes module in Blender to create clothes and we face a problem: while exporting, we get a small box with the error message: "singular matrix in corner weight". After looking at the Python code, I find that the full error message was printed in the console. I get it, get the number of the vertex producing the error and we're able to select it. Right, but what does this error means and how can we correct that?
Note: we delete the vertex, create it again and now that's OK. But the question remains: what does it means??