Cannot Play YouTube Videos

While logged into my Premium YouTube account, I copy video .url's and add to Presenter to play. When I attempt to play YouTube videos, I receive a message asking me to sign in. I'm already signed in. How can I fix this and play YouTube videos without YouTube thinking I am a bot?

Is the video you're trying to play a private video on YouTube?

No. I’ve tried several videos. Ironically, tonight it is working. “Murphys Law”, of course.

Please add a control in Presenter that will allow users to authenticate their YouTube accounts.

Thank you

I'm having the same issue. I've sign in and out with no success. How did this get resolved?

and the videos are not private