when bootstrap3 boileplate used (need to check default too) the lead can contain markup, which can be unclosed when is used in the "featured articles" or "latest articles" plugins, and that can affect the page, e.g. an ellipsis in the middle of the tag or unclosed link
changing the filter on that line to truncatewords_html should fix it
https://github.com/aldryn/aldryn-newsblog/blob/master/aldryn_newsblog/boilerplates/bootstrap3/templates/aldryn_newsblog/includes/article.html#L34
when bootstrap3 boileplate used (need to check default too) the lead can contain markup, which can be unclosed when is used in the "featured articles" or "latest articles" plugins, and that can affect the page, e.g. an ellipsis in the middle of the tag or unclosed link
changing the filter on that line to truncatewords_html should fix it