Getting this problem now with the March build. Am pausing the game, and as paused is fine, but when returning to normal time it errors.

ArithmeticException: NAN
System.Math.Sign (Single value) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/Math.cs:485)
Spine.AnimationState.ApplyRotateTimeline (Spine.RotateTimeline rotateTimeline, Spine.Skeleton skeleton, Single time, Single alpha, Boolean setupPose, System.Single[] timelinesRotation, Int32 i, Boolean firstFrame) (at Assets/spine-csharp/AnimationState.cs:306)
Spine.AnimationState.Apply (Spine.Skeleton skeleton) (at Assets/spine-csharp/AnimationState.cs:181)
Spine.Unity.SkeletonAnimation.Update (Single deltaTime) (at Assets/spine-unity/SkeletonAnimation.cs:177)
Spine.Unity.SkeletonAnimation.Update () (at Assets/spine-unity/SkeletonAnimation.cs:167)

This problem has only appeared recently with Spine working fine before. I'm wondering if it may be related to the export and import as when I look at the inspector now there seems to be some inconsistencies with the icon that you normally see beside the animation names. One has it smaller and one is missing.
 Loading Image

We've tried removing these anims but they don't solve the problem so am just curious what this means in case it may be a symptom.

I play an animation with the test play button in the inspector and it works fine. In game I can change the anim to many others using the inspector and they play fine but the offending one doesn't work (is the explore_damage anim that fails which is why I was wondering if the failure was because of the "errors" just before it). It seems to just show a frozen distorted frame. Are there any ways to "debug" an animation and see what anims are playing in each layer?

Thanks

I have a multi-layered anim and I want to trigger something when a specific animation on a specific layer finishes playing.

@Pharan Afraid that hasn't solved it. The object also has 3 other layered animations on it but I want to check against the finishing of the layer 0 anim. Is this correct for that? The other layers are looping so shouldn't end so I'm guessing this end event must be from the base animation? If I set the time to 1s then the whole animation plays but I now get the blending I don't want and the animation looks poor.

Am using Spine on my first commercial project and have hit a problem with the end state trigger. I'm using the following to turn off an object when a specific anim finishes

plr.state.End += delegate
{
   // *** DELEGATE ***
   if (plr.state.GetCurrent(0).Animation == exploreSwapOutAnim)
   {
      gameObject.SetActive(false);
   }
};

This does get triggered but I think it's when the 0.2s mix time is reached rather than the end of the anim. If I change this default to 0 then it immediately triggers and I see none of the animation. This also happened when I tried using the specific animation mixing values entries. I just updated to the latest and it doesn't seem to be any different (Last updated: UTC - 2017 March 16).

I am new to spine (old to Unity) and want to set a specific anim frame too. It's on my main character where they get into a state where I need to code select the frame they are in, but in other times I need full animation. I noticed the "better" solution doesn't use a Skeleton Animation so am I right in assuming I can't use it if I want other Animations to play normally? I've used Emblazed's solution and it works but was not sure if it was the best way to go.

Thanks