macOS Sierra Version 10.12.5
Broken: 2.78.5 (2.79)
Short description of error
Collada Animation Export Failure
I was able to resolve the issue by removing "Spider_Armature_" from each node id for type "JOINT"
So the block you want to look at is in <library_visual_scenes>
The first node has id "Spider_Armature" and is of type "NODE"
Each node of type "JOINT" in this section has "Spider_Armature_" appended to its id.
And thanks for all the hard work you guys put into Blender, I appreciate it.
Please ignore what I posted before as a possible solution. After more testing I discovered my workaround didn't really fix the issue, in other animations I tested, incorrect joints were moving/scaling.
I also wanted to be more clear about what I mean by export failure. Normally when I export using the Collada option, I can preview the animation directly from Finder in macOS, by selecting it and hitting spacebar, or using the preview app. But in 2.78.5 (2.79), when I export a character with animation, I can only view the mesh, but there's no animation.
If you need me to elaborate on anything please let me know.
I added four new attachments, the two files labeled 278 are the ones working, 2785 are the ones that are not working.
The files contain a Lamp with an armature consisting of 4 bones, performing a single hop.
Also another note about strange behavior, in the file where the animation is working, the exported animation has scaling in it. If you watch the animation from within Blender there is no scaling during the animation.
Exact steps for others to reproduce the error
click File > Export > Collada > Export Collada