Edit: Just noticed the TreeD part.. oops - the below might not work because, AFAIK, TreeD only works with textures that Blitz already works with! The only place I've encountered the error you mention is with the texture issue described below - perhaps it isn't writing out the B3D files correctly? (ie, it might be slightly malformed in a way that still works in B3D but not in MINIB3Ds strict B3D loading?)
......
Your B3D file is using textures not supported by BlitzMax. Try replacing all the textures in the modeller making the B3D with PNG versions, then export, and it should work fine.
For instance, if you're using 3D World Studio, your textures will be .SRT files - these aren't supported and will cause the crash-out you describe. Copy your own PNG textures (or screenshot their textures and save them as PNG files in a graphics ediot) into the materials folder and replace the textures in your B3D.
See if that fixes it!
......
Your B3D file is using textures not supported by BlitzMax. Try replacing all the textures in the modeller making the B3D with PNG versions, then export, and it should work fine.
For instance, if you're using 3D World Studio, your textures will be .SRT files - these aren't supported and will cause the crash-out you describe. Copy your own PNG textures (or screenshot their textures and save them as PNG files in a graphics ediot) into the materials folder and replace the textures in your B3D.
See if that fixes it!