Check the PTS and DTS of the video

 command to run

#PTS

#windows
ffprobe -show_frames -select_streams v https://xxxxxx  | findstr pts

#Linux
ffprobe -show_frames -select_streams v https://xxxxxx  |grep pts


#DTS

#windows
ffprobe -show_frames -select_streams v https://xxxxxx  | findstr pkt_dts

#Linux
ffprobe -show_frames -select_streams v https://xxxxxx  |grep pkt_dts

an uneven pts 

a uniform PTS 

Properties available for viewing

 Download FFPROBE

Go to the official website of ffmpeg https://ffmpeg.org/download.html and click to download the installation package according to the position of the red box shown in the figure below.

 

 set environment variables

D:\xxxxx\ffmpeg-5.1-essentials_build\bin