Animation plays incorrectly after upgrading from 2.1.3 to 3.0.3

[nrasband]

Hello, we have been using Lottie in our app for a long time and it has been working great. I updated from Lottie 2.1.3 to 3.0.3 and now one of our animations is playing incorrectly. There are fireworks that normally explode in all directions, but after updating, they just shoot straight up as vertical lines.

• [x] The issue doesn't involve an Unsupported Feature
• [x] This issue isn't related to another open issue

This issue is a:

• [x] Non-Crashing Bug (Visual or otherwise)
• [] Crashing Bug
• [] Feature Request
• [x] Regression (Something that once worked, but doesn't work anymore)

Which Version of Lottie are you using?

Lottie 3.0.3

What Platform are you on?

• [] MacOS
• [x] iOS

What Language are you in?

• [x] Swift
• [] Objective-C

Expected Behavior

The fireworks should shoot out from a center point like this:

Actual Behavior

The fireworks are now just straight lines that shoot towards the top of the screen like this:

Code Example

let animationView = AnimationView(name: "certified")
animationView.contentMode = .scaleAspectFill
animationView.backgroundColor = .red
animationView.frame = view.bounds
view.addSubview(animationView)

animationView.play(completion: { (_) in
    self.dismissAnimationView()
})

Animation JSON

Emailed

[filsv]

@nrasband i have the same issue. after updating to new version, it's not loading some of the animations.

Probably not playing it or only with completion handler....

[buba447]

Id be willing to be that animation uses repeaters. Repeaters arent supported yet by lottie 3.x.x

[nrasband]

Id be willing to be that animation uses repeaters. Repeaters arent supported yet by lottie 3.x.x

It does use repeaters. It's strange that repeaters were supported in older versions of the framework, but not in 3.x.x. Any idea when repeaters will be implemented?

[buba447]

In 2.x repeaters were only partially supported. The way they were implemented caused a lot of errors unfortunately. When I rewrote the library in swift I wanted to do repeaters the right way, so opted to lay the groundwork for a proper implementation of repeaters. This refactor made it impossible to use the old incorrect repeater solution.

I'm not sure yet when repeaters will be implemented in 3.x. They are on my todo, but I am maintaining this repo in my personal free time.

[nrasband]

That makes sense. I guess in 2.x they were supported enough for our animation to work. We will stick with the older version in the meantime. This is the only issue we have ever had with it. Thanks for your work on this high quality library.

[buba447]

I will be sure to update this issue when repeaters are added. Cheers!

[popwarfour]

Any updates on this @buba447?