custom field "youtube" NOT WORKING

I have tried the following:

admin -> listing setup -> add new custom field for youtube (database key is: youtube)

then assign it to the listing package you want

I then login as a user and add a youtube link that looks like this:
https://youtu.be/yuR1rVVf358

and I ALSO tried the embed code and a regular link.

the video will not show up in the listing. ( I also made sure the listing was using the correct listing package)

I also added the custom field “url” and it wont show up.