I have a woocommerce store, and a product in it.
There is a weird issue:
In the product description I do Insert–>Media–>link to youtube video
the video is inserted and works fine (also after cleaning cache, in both desktop and mobile versions),
but after a few hours (5-8 hours) it dissappears from there as if I have never placed it there.
It occured several times, also when doing Insert–>Media–>embed.