Need some help with Wall Worm tools or building assets for Source? Use the categories below to find answers. If you cannot find an answer, please consider using the WW forums; please only contact WW directly as a last resort--as far too often the time spent answering emails deals with subjects already covered on this site and the forums.
When reopening a scene the models can appear as cubes if the game settings do not include paths to the source MDL files.
This document explains why models can appear as cubes instead of props when importing VMF or MDL nodes.
Sometimes WW Pro will have a problem exporting a model with a Morpher modifier if the normals cache is not being displayed properly.