Weird stuff going on with embed code

[DonnyB]

My website has a webpage that is for our live stream. I can log into my YT account and go to the Live Stream page and copy the embed code and then paste it into my webpage. The graphic from the YT page displays correctly until I log out of my TY page. The graphic on the webpage then changes to a black and white graphic. In other words, my website shows the correct embed code as long as I am logged into my YouTube Live account. Once I log out, my webpage image changes to a black and white picture.
How can I make the webpage keep the graphic from the embed code?
BTW, I have tried other browsers, disabled all my Firefox add-ons, and only have public videos.

 

[Crown]

Moved to the recording / editing / production / software / hardware forum.

Hmm, that's weird. I wonder if Youtube forces a thumbnail for "YT live" to black and white to show that it's not currently live. That's just pure speculation - I don't use YT live streaming. Maybe someone else knows... ?

 

[DonnyB]

When I log into my YT channel, then go to creator studio and livestream, there is a webpage where you set up your livestream broadcasts. This page has a thumbnail that is always the same (unless you change it). I can right click on the thumbnail and choose to "copy the embed code". I can then paste this code into my website. However, after a livestream broadcast, Youtube uses the thumbnail code and assigns it to the finished livestream and gives the thumbnail on the set up page a new code.
This means, although the thumbnail on the set up page is always the same, the one on my website changes after each broadcast, and I have to copy the new embed code and paste it into my website.