Plex for Mac, playing MOV video freezes

Server Version#: 1.27.0.5849 (QNAP Intel/AMD 64-bit)
Player Version#: 1.45.0.3013-1676042f (Plex for Mac, MacBook Air (M1, 2020))

Problem Summary

Plex for Mac, playing MOV video freezes, 17MB video, cached for a few minutes still can’t play normally.
In addition, I tested Plex Web and it can play normally.

test video
2022-03-28 18.31.36.MOV.zip (17.4 MB)

Problem Description

I access Plex Server through VPN, the upload bandwidth of Plex Server network is 35Mb/s, and testing Plex Web can play normally, that is to say, Plex for Mac plays MOV video stuck, not caused by insufficient network bandwidth.
The phenomenon of playback freeze, please watch this video.m4v.zip (2.7 MB)

When Plex for Mac plays a MOV video, the server panel shows that the remote transmission has reached 304Mbps, which far exceeds the server bandwidth, resulting in a freeze. A video with only 17MB, it is impossible to use such a high bandwidth, please help to see if it is what is the problem. thanks

Usually this means that the file is badly muxed. I described much of what is going on when such a file is played in a different post Help: stream is constantly buffering, libmpv sends TCP RESET - #11 by gbooker02

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