https://www.cnet.com/news/youtube-showed-a-link-to-911-info-on-notre-dame-fire-videos/

"Last year, we launched information panels with links to third-party sources like Encyclopedia Britannica and Wikipedia for subjects subject to misinformation," a YouTube spokesman said in a statement. "These panels are triggered algorithmically and our systems sometimes make the wrong call. We are disabling these panels for livestreams related to the fire."

The information panel gave basic information on the 9/11 attacks and linked to an entry from the Encyclopedia Britannica.