Android: 2 problems in android

Lottie in Mobile
1
  1. I can make my own lottie file with Synfig. This .json is working when I put it in webView but not working in LottieAnimationView. But if I take from free lottie files from site. It works in both. What should I do?
  2. When I put lottie file to webVew the scroll is not working.