UnityEngine.Timeline and UnityFbxExporter Broken in 2019.1

Unity Engine
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I imported my project into 2019.1 beta for testing, and found that both package and asset store FBX Exporters are broken. They both require reference to UnityEngine.Timeline and UnityEditor.Timeline but cannot resolve, most likely due to Timeline being moved from builtin to package… 2019a11 Cinemachine doesn't see Timeline namespace

Is there a scheduled fix for the FBX Exporter to work with 2019.1?

Thanks

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