"1 hour ago", someone commented on an answer I gave on meta.tex.se:
However, I didn't get a notification for that comment, the latest notification in my inbox is from "6 hours ago":
The latest notification leads to this:
AFAIK, users should always be notified of comments to their own posts, right? I don't know if this problem can be reproduced, but it sure is a bug.
Responding to Kevin's comment -- The comment does show up on the responses tab of my meta.tex.se profile (but still not in the inbox):