To replicate this issue, use a moodle 2 theme that does not use the ids #page-header and #page-footer (magazine for instance). Then, embed a resource URL. The resource object box is not given a height, and is therefore not displayed. This issue also occurs with the view/agree to site policy.
It could be fixed by making sure every theme has #page-header and #page-footer divs. Or, it could be fixed in some other manner that does not rely on theme divs.
If it is decided to fix via adding in #page-header and #page-footer, please re-assign to me.