Problem using animations with collada models

Hi everyone!

I'm trying to use a .dae model model I downloaded, I configure it using Humanoid method and everything works perfectly until I run the game and the model starts an animation. After that the moment a camera gets close to the model the closest part stop rendering, even with the Scene editor camera, but if I assign no animator to the model everything renders OK (but of course it doesn't move).

Any idea why this is happening?

Thanks! Alfonso

Game camera close to it, Scene camera far:

Game camera close to it, Scene camera closer: