Problem with export PlayerModel with skeleton

Hello, When I import some reference.smd (Where is playermodel with skeleton) and then then export it without any editing I got this:

Before importing:

combine_elite_player_head

After exporting

Problem is “14” change to “0” in the whole file :frowning: Any ideas where is problem please ?

I use Blender 2.78. In Blender I use for Import and Export .smd files “Blender Source Tools 2.9.1”

Anyone ?

does it look wierd when the model is compilied