Custom Blender Monsters for Amnesia

[Spelos]

Be sure that the MAIN .dae model is EXACTLY THE SAME as the .dae_ANIM model. That means the same applied armature.

And the best thing in your situation would be to take the whole main model and hit CTRL + A and select Apply Rotation, Location and then Scale, before you make the animation.

It happened to me a while back and I'm pretty sure applying these and re-importing worked.