Comment to 'Video is essential. Please upload a video file.'
  • You are using Videos module, which is meant for uploaded videos, like your own YouTube. Inserting them via Froala effectively creates a description with a video embed. So, if the video is not uploaded then in most browsing pages we wouldn’t be able to show a preview (not possible from froala embeds as they are freeform and can be multiple). 

    So, just making the field non-compulsory isn’t going to fix the issue. Instead we should offer an option to either upload or embed a video and if embedded treat it as a main media file. This way we can control which video exactly is to be used for preview. And in this case froala toolbar would be better off without a video embed option.