Kristina1982
Hi
Kindly check my previous suggestion again, the videos will remain pending state when you uploaded them via PC and if your server does not support FFMPEG https://ffmpeg.org/download.html
https://documentation.jomsocial.com/wiki/Uploading_Video
Without FFMPEG support your server would not convert the video and they will stay in the pending state.
If the server support FFMPEG and you have added the FFMPEG absolute path in JomSocial > Video settings.
Upload a video on frontend. It will upload and show pending.
Now open JomSocial Mail queue from backend > execute cron
if the FFMPEG is working the cron message will show videos converted. If not it will show count not convert videos.
This is how local videos works.