I've had a modified youtube item_details template which was using an old way of displaying comments and other item features, pulling them in with separate calls. At some point {jrCore_item_detail_features module="jrBlog" item=$item} replaced this method. I'm not sure when the old method stopped working, but I updated the template with the new method, but now the tags entered prior to that are not showing on the detail page even though they are still present in the data.
updated by @blindmime: 02/16/18 06:38:28PM