Cocos Creator runtime - animation timing is linear instead of Bezier

Creator 2.x
#1

We built a coin effect in Spine 3.8:
Here is a video about the designed animation.

We exported it (atlas + JSON + png) format, and tested in Cocos Creator v2.3.1, v2.3.4 and v2.4.0-rc1, but all the animation keyframe become linear instead of bezier regardless the version, check this video

However the web runtime does play it correctly, here is a very short test:
http://runiosit.com/coins/

Is this maybe a bug in cocos-spine runtime?

I’m tagging folks working with Spine runtime and CocosCreator, may one of them can help efficiently: @jareguo, @sunnylanwanjun

#2

Hi @b.nemeth.88, could you attach an exported demo?

#3

Sure, here is the exported Spine animation: coins.zip (424.0 KB)

#4

Please check out https://github.com/cocos-creator/engine/pull/6798 , the spine runtime is upgraded to a recent version.

After upgrade https://www.dropbox.com/s/10shu9obgit4l8j/Screen%20Recording%202020-06-01%20at%205.33.32%20PM.mov?dl=0

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