Youtube Videos not embedding

Hey all,
Several of my students have tried to embed youtube videos using weblab (beta) or in some of the other levels only to have the video embed code not paste. Some have had success pasting multiple times in rapid succession until it finally stayed.
Any thoughts on what is going on?
Anyone else have this issue? Resolve it?

When going to YouTube and sharing a video, there is an option so embed the video in a website.
The code looks like that currently:
<iframe width="560" height="315" src="" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Not all the fields are necessary actually. If you want to type it manually instead of copy/pasting it, it should still work.
The tag <iframe> is necessary. the src attribute is necessary, and should link to the youtube video. Note that it contains /embed/ in the URL. For the additional fields, I am not sure if they are all necessary or not. You could try to remove some of them.

Note that in the past, the embed options have been different.