Good morning Artem,
I believe this could be an internal bug of the Wikitude SDK. We've had a very similar issue reported previously, but have not yet managed to investigate it thoroughly.
Does this also occur if you add all the models before starting any animations? Or does it only occur when adding a new model while another's animation is already running.
- Daniel
It only occur when adding a new model while another's animation is already running
Artem Tomilov
Why the animation on the previous model stops, after adding a new model and running the animation on it