Question Animation in timeline won't play in build

I'm not sure what might be the cause of this issue, if it is because of Unity version, animation system, timeline system or addressable.

So I have a timeline contains only an animation clip (character attack animation), and it worked as a charm in editor, but in build the animation won't play. The playable asset is loaded by addressable asset system. I checked the following things:

1. The animation clip and the playable asset is loaded into memory, according to profiler.
2. The signal on playable is fired and received correctly so the game can proceed but only the animation was somehow skipped.
3. I tried different timeline package version and addressable package version but no luck.

Build is on Windows X64, Mono backend.
Unity 2019.3.0f3, f4
Timeline Package 1.2.6~1.2.9
Addressable Package 1.3.8~1.5.0

 

If the same assets/code work in the editor but stop working in a build, then your probably found a bug.

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