(So much for limited title name... -_-;;)
Basically if the song title, artist, and/or difficulty name contains "lower-than sign" (<) and "greatest-than sign" (>) together, it may break the formatting in Recent Activity.
Basically if the song title, artist, and/or difficulty name contains "lower-than sign" (<) and "greatest-than sign" (>) together, it may break the formatting in Recent Activity.
Here's the HTML code of what happened (it adds an invalid HTML tag instead)
<div class="event epic8"><img src="/images/A_small.png"> <b><a href="/u/39828">WubWoofWolf</a></b> achieved <b>rank #1</b> on <a href="/b/252238?m=0">Tatsh - IMAGE -MATERIAL- <version 0=""> [Scorpiour]</version></a> (osu!)</div>