Hi. The question is not really about the engine, but it is the only way to export as much as I understood.
I have model with animation:
(I tried on free from https://opengameart.org/content/animated-knight)
When I try to export with "Better" Collada exporter, I got this warning:
Object "Knight" has armature modifier, but is not a child of an
armature. This is unsupported.
And in Godot 3.0 I don't have any animation in AnimationPlayer.
What do I do wrong?