A couple of errors first and foremost
Above, there is a spelling mistake in your URL (loejospeh). Also, the code you are posting, the src attribute's value is not right. That's not a valid URL. Another thing is that your document is 100% width 100% height, flexible which means there is a possibility that the embed may not show up unless wrapped in a div with definitive values. i.e 400px by 300px.
Unfortunately, as we can't see the code in use within a Muse project then we wouldn't know what's wrong. Therefore, not being able to offer any solutions.