YouTube iframes don't display in forum post

When a YouTube video embed code is added to a forum post, it does not display in the mobile app. However, it does render properly when it is added as a link and the Moodle media manager handles the rendering (even though the output is still an iframe).

While the link is a viable workaround, the embed option allows users to set display options like size, so it would be helpful if both worked in the app.