Alright, so, no idea what to type here or anything, since the guideline has been removed.

Anyways, for example, if I import the Hard-Ware Morphed Scout from the Source SDK, make sure only the head will export, and as DMX, then if I make sure to set the Flex Type to Advanced, set the Hard-Ware Morphed Scout from the Source SDK as flex controller definitions, and export the head, it will say "1 file exported in 5.2 seconds with 0 errors and 1 warnings: WARNING: No flex controller defined for shape PuffLips" (no warning should had been there), then if I compile that, there will be no flexes. If I try to export again, Blender might crash/quit, and if it doesn't, it again just exports the .dmx with no flexes, with the same warning.

No idea for the "Simple Flex" Type, though.

Seeing I am trying to do something related to the Hard-Ware Morphed Scout, this bug is keeping me from it for now.

Running Blender 2.69, on a 64-bit Windows 7, with version 1.10.1 of the Blender Source Tools. Engine Path is set to the path of the FilmMaker's StudioMDL.

~Zwip-Zwap Zapony