it sounds like the animations and the mesh are not agreeing with each other when baking the animations into the model::
instead of directly importing an animated version, have you separate files for animations and meshes?
First Export only the armature and the model without animations. (you can have animations in blender already, but we are not going to bake it)
Then export in a separate file only the animation and the armature.
Then in high fidelity, use the edit script and add the model to the scene. Select the model, and check the properties tab in the Tools window.
Then apply the animation to the Animation URL path. and press “animation playing”
Currently note for now, only use 100 frames, that is until we can set the lastFrame value to be a bit higher (it currently isnt adjustable) and maybe slow it down by switching the animation fps to a smaller value. I haven’t had luck yet adding an looping animation with more than 100 frames for entities (you cant oddly configure it in the edit view), or using other animations baked into the animation file.