Video embed plugin throws an error in the editor
@lennart informed us that an embedded video on https://luas.de/falsche-zielgruppe-an-der-mausefalle/ produces an error in the editor.
Currently this article seems disabled for the better.
We would like to reproduce the issue and document steps about it in here, in so we can triage the failure and resolve it.
What exactly is happening, and can a screenshot maybe help out to visualise the problem?