"Video Not Available" problem

Some folks who see my instructable "Create a Beautiful Vortex" , get a "Video Not Available". I've had a couple of complaints in the comments under that instructable.

It plays ok for me and most others.

Can this be fixed??

ll.139 years ago
I've often had this problem with a lot of embedded YouTube videos, Instructables, and other not related forums, I think it's a problem related to the YouTube embedding, as someone comment, refreshing the page usually works, or it you double click on the video it'll play it (and then say "Video not available", and open the YouTube page in a new tab/window.