YouTube is Blocking My Videos

I've uploaded almost 100 videos on my Video Channel, which I made UNLISTED. On all but 3 there's a menu of other videos that are NOT related to my channel AT ALL, and every time I click on the link to anyone of these 3 videos this STINKING menu covers at least the entire right 1/3 of my video. I've gone to Channel/Advanced (and checked all other Channel features) to block any ads appearing on my channel, but that doesn't help. This stupid menu pops up on all of my other videos, but for some reason, on those it appears BEHIND the video. That's annoying enough, but this is ridiculous

I'm sending the links to these videos to VERY IMPORTANT clients that I only get 1 shot at, and Google is SCREWING me in the pooch!

Please Someone Help,
GPL

Here's what else YouTube is screwing up. As I stated in my 1st thread, I made THE ENTIRE channel UNLISTED! I don't know how to make it ANY clearer to !@#$%ING YOUTUBE that I DO NOT want my videos circulated all over the web. I ONLY want to store them there FOR NO ONE to see so I can send the links out to whomever I choose, and ONLY they get to see them. NOW HOW THE H#!! can I do that?

Oh! AND ANOTHER thing. Now, I can't even see the the thumbnails that were there an hour ago. How do I get those back?

Sorry, not to be short with you guys, but you're not even close to the ballpark. What does "storage" even mean in this conversation? And as far as being free/paid, if you actually read it, you'd see that ALL but 3 were having the issue. So, how could free/paid have any bearing on it. I simply said that the menu of videos on the right side that appear on all accounts is covering about 1/3 of my video, where the other videos it still pops up, but it pops up BEHIND the video.