Canvas - Known Issue - No Results from YouTube Search in Canvas [UW-Madison]
This issue affects any instructor who is trying to embed a YouTube video into Canvas via the built-in Canvas search tool.
Instead of using the built-in YouTube search in Canvas, search for a video directly on YouTube. Then, directly embed the video by clicking Share, copying the embed code from YouTube, and pasting it into the HTML editor in Canvas. Youtube videos can also be added via Kaltura MediaSpace as outlined in this document from Kaltura Knowledge Center.