YouTube URIs fail to render thumbnails when oneboxed

[rokejulianlockhart (Mr. Beedell, Roke Julian Lockhart (RJLB))]

1. https://youtube.com/shorts/Cs3sTnLO6EE

2. https://www.youtube.com/watch?v=Cs3sTnLO6EE&lc=Ugyi1VtrCVd2POTc82N4AaABAg#:~:text=A%20Screencast%20Of%20LinkedIn%20Persona%20Verification%20Failure

…become a transparent box:

The DOM shows:

<img src="" width="480" height="360" title=" - YouTube" style="aspect-ratio: 480 / 360;">

However, they render when posted: