There's been an ongoing problem with embedding youtube videos for a few weeks now.
Invision says youtube made some change that required a manual change (by admin) to the board setup.
Yours truly followed the instructions faithfully, but sadly, incorrectly, and now it appears the problem is even worse.
As I understand it, when Invision gets back to me with the help I have asked for at digging us out of this mess, any videos that now do not embed, or do not play correctly, will start to work again. That's my hope anyway.
So, in the meantime, to make sure you get it right when yo