Question Model moves when starting the animation clip

Hi everyone,
I'm just starting out with Unity and I was trying to animate a simple human model but whenever I preview the animation clip, the model directly jumps down (from foot on ground to hips at 0,0,0 - so I guess). I have tried many different things but without success.

Also, it appears that when using root motion, the model moves up (into the air) while doing nothing (not even a script attached.)

Anyone has an idea what the problem could be? My thoughts are: Do I have to define the Avatar center with the model center, eventually?


Any help would be really welcome!

Cheers!!
Epic