YouTube Embed showing blank space instead of video

Hi everyone,

A couple of days ago, I noticed that my embedded YouTube Videos no longer show in the front end. In the backend editor they are shown as usual, but in the front end there’s only blank space where the video is supposed to be. I tried using the Videopress-element, iframe code directly from YouTube and checked that embedding is enabled on my YT-account. I also tried the Short as well as the full-URL. Nothing seems to solve the issue. Any other ideas on how to fix this?

Thanks ??

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