User:Waanders replied to a topic I'm following on MediaWiki org, as I see in the notifications and the contributions,, but I can't see the reply on the topic, history, or board.
Contributions where the reply appears:
https://www.mediawiki.org/wiki/Special:Contributions/Waanders
The reply doesn't appear on the topic page, despite being in the notification:
https://www.mediawiki.org/wiki/Topic:U9p9fo4exdoyq8eh
The history doesn't display the reply, and it hasn't been hidden or removed (if it was, it doesn't get audited at least, which would be weird):
https://www.mediawiki.org/w/index.php?title=Topic:U9p9fo4exdoyq8eh&action=history