Lottie/Bodymovin promise

Hello,

I need to update data with a certain speed on a Html template. I tried to add a wait in the promise in order to wait for the animation to be finished before to start with the next one but looks like that especially using the autoload this makes no effect.
So to summorize my issue is that in case of many template data update one after another if lottie has not yet finished the previous animation will not execute the next one.
Is there a way to get a call back from lottie or from Caspar to resolve this issue?
Thank you
F.