Animation playing bug in iOS SDK or In LottieFiles APP

[maiyabj]

Hello. When I play the json animation file with Lottie iOS SDK, it has bugs. I play in LottieFiles APP, it has bugs. If I play animation in the web version with Lottie JSON Editor - everything looks fine. Seems like iOS SDK renders the animation differently. I attach the animation file. Is it the SDK bug or can my designer change something in the json?

Also I attach the Json. fireworks.json.zip

Thank you!