I have released a new version of CommentBox for SharePoint to fix a bug where new comments didn’t show until you reloaded the page.
Look here for the complete change log: https://spjsblog.com/commentbox-for-sharepoint/commentbox-v3-x-change-log/
Post any comments below, but please post bugs or questions in the forum: https://spjsblog.com/forums/forum/comment-box-for-sharepoint/