Uncaught TypeError: Cannot read property 'dispatchEvent' of undefined

[tenchong]

服务端，安卓端，网页端都是用5.0的版本
安卓端开摄像头，网页端分流播放就报
owt.js?rnd=20210101:9 Uncaught TypeError: Cannot read property 'dispatchEvent' of undefined
at owt.js?rnd=20210101:9
at Array.forEach ()
at r.value (owt.js?rnd=20210101:9)
at r.value (owt.js?rnd=20210101:9)
at owt.js?rnd=20210101:9
at Map.forEach ()
at A (owt.js?rnd=20210101:9)
at owt.js?rnd=20210101:9
at owt.js?rnd=20210101:9
at Array.map ()