Broken rig in Source

Garry's Mod modelling
#1

Greetings. I’ve made smooth rig for a playermodel and it looks fine in Max, but Source seems to ignore the weighting applied to Spine, so this is overly confusing. Just compare these:

http://i.imgur.com/B26cNfu.jpg[/t]
[t]http://i.imgur.com/qjCbuxz.png[/t]
Last time I had the same problem with Spine1 when Spine2 ignored weighting applied to the former bone.
[t]http://i.imgur.com/B7pXkfu.png[/t]
[t]http://i.imgur.com/dXrLNGa.png[/t]
[t]http://i.imgur.com/1K9Za4S.png

Is there any way to get this solved apart from re-rigging it (I wouldn’t even know to which bone now)? Thanks in advance.

#2

StudioMDL culls any vertex weights that are less than 0.05.

That might be the cause of your problem.

#3

Oh, what a bummer. Thank you for letting me know, I’ll do some adjustments then.