Found another bug in the comments plugin. Using Subrion 188.8.131.52 with "paper" template and comments 4.1.0 plugin. If you enable WYSIWYG in comments config and then submit a comment to an article on the front end, it will display an error "Make Sure you have entered a valid comment" and not submit. If you disable WYSIWYG then the comment will be submitted. Tried uninstalling and reinstalling comments with cache clear in between and same issue remains.