I’ve imported several .fbx from Blender that my team has been working on. And as most people know imported animations are Read-Only. The only way to modify them, or add Animation Events, is to first duplicate the animation, and then make changes to that animation. However, while I can add Animation Events, I can’t add keyframes or modify keyframes, because all of the properties are marked as (Missing!). (See the screenshot below.) Does anyone know what causes this and/or the solution?
Don’t you hate when you figure out a problem, RIGHT after you ask the public about it? 
It seems that the Armature and the Mesh have to be direct children of the GameObject with the Animator component on it. If they’re children of a child, then that’s when the (Missing!) properties happen. Granted the animations will still play correctly, but you can’t modify the properties that already exist in the animation.
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