usually starts working normally after a while and ....

i've been thinking it has something to do with some ads?

bookmarking in case someone has idea.

Strange.

or an update happens

To fix it I copy the URL and then open a new browser tab or window and view the offending embedded utube vid.

After that my embedded videos play like before.

But I would call it a work around not a fix. It was a PITA.

that might be the problem. I had that issue until I relocated the server I was using to a different location.

Though I have strange internet - rural system off a tower - and I noticed some ads last night that seemed to think I was in Las Vegas.

It was worse before I got VPN and now I seem to be able to switch it around to clear it up.

Don't seem to have problems, except with occasional buffering issues, and that usually has more to do with our internet provider than anything else.

I didn't try logging out of DU, just did the work around mentioned above.

When it pops up with "sign in or not now", I always do the "not now".

and when I clicked the link to sign in it went to a blank "can't find that page" message right in the embed. hopefully it was a brief glitch.

My bad.

benign neglect - just leave it alone for a while and see what happens