Adobe animate CC : Some elements missing after rendering

[Food27422739w0a9]

Hi, I am a beginner in adobe animte CC, in my staging animation works fine, but aftre rendering some of the elements and motions are missing , attached is the video, please help. 

[Food27422739w0a9]

Without armature , exporting works fine , Is there any problem with exporting with armature ?

[Nicktendo28]

Instead of Armature, try using the wrap tool with flexi bones.

[Mario_CR]

What version is this? 2020?