If anyone is still struggling with the same issue; I have been on contact with support and it turns out that the stop() function for Lottie is currently not working for now, unless if you place it in an event handler.
That means that nameOfYourLottie.stop(); won’t work in the root of onRead();, but only if you use an event handler, such as onViewPortEnter.
Support mentioned they are working on getting the issue solved, but for now this is the way to go forward!