Urdf mesh viewer KO

[yvanblanchard]

Hello,

I have a model (urdf with STL mesh) which can'be rendered through yourdfpy and its viewer (empty scene / white background).
It is clearly related to my mesh, but other urdf packages work fine with it, so I don't understand.
I tried both ASCII and binary versions, but same issue.

winder_robot_urdf_viewerKO.zip

Thank you.