Unvanquished is an open-source FPS game featuring team-based strategy and RTS elements, pitting humans against aliens in a futuristic setting.
https://forums.unvanquished.net/
Oh, you've revealed my conspiration... Now i'll have to kill you!
Anyway, don't know what's wrong with triangle... Maybe you can give me coordinates of its vertices? Or a closer look to the damaged area :)
I could give you a plaintext (.iqe) version of the model. Other than that, there is little I can do to debug this. 
Could you prioritize this? I'd like to add the Spiker to the release. (However, I'd release the latest nearly-working version instead if it isn't fixed in time.)
I sniffed around that troubled leg and found nothing. No vertices with weird weights or no weights. NOTHING. Anyway, i reexported it with reduced file size -- iqm exported doesnt cut off frames that were not used in animation, so i had to do that manually. Tested iqm in that iqm demo shipped with iqm "sdk" and it was totally ok.
https://drive.google.com/file/d/0B_q1Py ... sp=sharing
Will have to work together on this issue, so tell me when i can catch you on irc
Thanks for the re-export, I have the same error though. Handing this to gimhael to have a look.
Gimhael found out that the latest version has 129 bones while 128 is a renderer limit (for VBO vertex skinning). Could you provide a version with 128 bones or less?
yesssss
new version of iqm exporter includes non-deforming bones now. de-rigify option wants me to use special naming. but i don't wanna. anyway, adding additional condition works great, so here is a fixed iqm
fixed destroyed animation and added some details to attack animation
anyway, destroyed anim fixed again