I WANT TO MAKE YOUTUBE MONTAGE CONTENT BUT EVERYTIME I DO MY HIGLIGHTS THEY DONT APPEAR

so there is no link cause I cant really show you what happened but I can explain, I made 5 highlights 2 days ago from when this post is uploaded to the boards, I went to start adding the clips to my software so I can edit them in my video editing program and when I went to the documents they were there, and now all of a sudden they aren't in the documents of my computer or on the actual client uder profile <- highlights. I want my clips back I don't know why this is happening I know its not my client cause even when I deleted League to redownload it and made a new account my old clips from my previous account were there, this is confusing I don't understand , Riot please check the highlights in the client and everything connected to making highlights witht the client cause I lost 7 games worth of pentas and cool outplay clips all that hard work for my youtube down the drain please fix. Please don't treat this post bad just because im a small youtuber, cause if a pro player had problems you would jump on tht stuff right away so please riot or someone please reach out and help me understand what is happening ]