Problem with Skinned Mesh Renderer Component and Assetbundle for iOS App

Hi everyone.,
I am making a game in Unity 2017 for iOS that get assetbundles

One of the bundles have an object that use a Skinned Mesh Renderer Component (for bone animation). I noticed that this particular case (having a gameobject with Skinned Mesh Renderer) generates a EXC_BAD_access code=1 address 0x8. This only happes with the iOS version.

After several trials, I found that the object with Skinned Mesh Renderer Component is the one which creates the error. If I turn off the Skinned Mesh Renderer component the problem never happen.

Here is the error I got from Xcode:

same here with 2017.4. any solution?