It is nor working for me unfortunately.
I tried to make tricky workaround also. I've added Slider to 2d layout. Than in code i was changing value on this slider.
I thoght that the Value Changed event can handle the change from code and invoke play on model by simple binding Value Changed -> Play. I made some test, but this is not working also. Animation is played only when I am changing the value of slider by clicking on the dot and moving it to the left or right.
Maybe you know than how to invoke Click event on button in scene? I tried few times, but without success also.