I saw this yesterday but then I thought it went away? Maybe a bug from last night's update?
On https://forum.netgate.com/unread I see:
18bc324d-5c79-4a24-8082-9bf7eef9a6c0-image.png
Other pages show:
2e9f694d-d79b-42d1-8a62-7df002564610-image.png
It seems to work on other/category pages, or maybe it's random.
HTML shows a blank number (in the span tag):
<div class="col-md-1 hidden-sm hidden-xs stats stats-votes"> <span title="0"></span><br> <small>Votes</small> </div>