Preview problem with textured OBJ

I’m getting a blank preview window when I upload a zipped file with .OBJ, .MTL & .JPG texture.
However, the size is coming in correctly and the small previews in the uploaded models page show up correctly. Any idea what’s happening here?
The model has a fairly dense mesh. Is there a limit to number of faces or vertices for the previews?
I’m also having the same problem using a VRML file.

Hi Nosslok,

we occasionally have that issue with the 3d model viewer.
There is nothing wrong with the model, it is just the viewer that needs to visualise the model.
The issue has been identified but not yet solved.
if the thumbnails (small previews) are ok, then you can be sure that we are able to print it in the applied color.

regards,
Wim