[ART] Model Editor Problem

[ZodiaC]

The HPL2 editors tend to rely on cached data rather than constantly reading from the file system and parsing files. This means that even if you make changes to the mesh, and therefore the DAE file, if you don't restart the editor, importing it may show no changes. Also, the editors, when listing files within its file browser, do not update their listing for directories already listed. To refresh its listing you have to move up one level in the file system and then re-enter the directory you were in, or simply restart the editor and navigate to the folder again. Any other issues related to this may be caused by the Windows Virtual Store.

Well this sounds logical but maybe you could explain me one more problem...I tried to import a mobile phone this time(Contists of Screen and the skeleton) so I created two mat files and the model editor seems to load it properly but when i press Start model test it dissapears...