After applying the patch below, the animation will quickly flash back to the first frame from the last frame when it ends.

[sunbohong]

diff --git a/Example/Example/AnimationPreviewView.swift b/Example/Example/AnimationPreviewView.swift
index deef14a6..82bda8d8 100644
--- a/Example/Example/AnimationPreviewView.swift
+++ b/Example/Example/AnimationPreviewView.swift
@@ -62,12 +62,15 @@ struct AnimationPreviewView: View {
       .playbackMode(playbackMode)
       .animationDidFinish { completed in
         if completed {
+          animationView?.stop()
           animationPlaying = false
+          sliderValue = 0
         }
       }
       .configure { animationView in
         DispatchQueue.main.async {
           currentRenderingEngine = animationView.currentRenderingEngine
+          self.animationView = animationView
         }
       }
       .getRealtimeAnimationProgress(animationPlaying ? $sliderValue : nil)
@@ -114,11 +117,12 @@ struct AnimationPreviewView: View {
   @State private var animationPlaying = true
   @State private var sliderValue: AnimationProgressTime = 0
   @State private var currentURLIndex: Int
-  @State private var renderingEngine = RenderingEngineOption.automatic
-  @State private var loopMode = LottieLoopMode.loop
+  @State private var renderingEngine = RenderingEngineOption.mainThread
+  @State private var loopMode = LottieLoopMode.playOnce
   @State private var playFromProgress: AnimationProgressTime = 0
   @State private var playToProgress: AnimationProgressTime = 1
   @State private var currentRenderingEngine: RenderingEngine?
+  @State private var animationView: LottieAnimationView?
 
   /// Used for remote animations only, when more than one URL is provided we loop over the urls every 2 seconds.
   private let timer = Timer.publish(every: 2, on: .main, in: .common).autoconnect()

[sunbohong]

The reason is that the following code creates a CAAction.

  public func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
    guard ignoreDelegate == false else { return }
    animationState = flag ? .complete : .cancelled
    if let animationLayer, let key = animationKey {
      animationLayer.removeAnimation(forKey: key)

      if !disablesCurrentFrameUpdateOnStop {
        animationLayer.currentFrame = (anim as! CABasicAnimation).toValue as! CGFloat
      }
    }
    if let completionBlock {
      completionBlock(flag)
    }
  }

animationLayer.currentFrame = (anim as! CABasicAnimation).toValue as! CGFloat