Sharedmedia field not working

Hello.
I added Sharedmedia field.
I didn't change any setting.
While editing an item, I add the video URL and click on the FETCH button,
Everything is fine, the video is loaded.


I save the item and open it again.
The field is empty.



But in database, _fields_item_relations table have data:



 

same reply
fc vers
joomla vers
php vers
regards

FC 4.2.1 Stable
Joomla 4.4.6
PHP 8.2

I can't understand the cause of the problem.
I can add video to some items, but not others.
And it's not a Youtube problem.
Watch this video please -  directory.audio/images/monopics/2024-08-22_16-48-38.mp4
 

maybe the problem isn't on this field maybe a value in other ?
i will try to test with your youtube urls, can you put here ?

But problem not in video.
In video, I added this URL in to the two FC items.
The first item does not show the video, and it is NOT displayed while editing the item, although the video data is in the database. 
And in general, for this item, the problem will be with any other video.
There is no problem with the second item.

Please, watch the video again.
directory.audio/images/monopics/2024-08-22_16-48-38.mp4

if its a dev site can you test flexicontent beta ?