The question in question: What rules govern forced removal from flights (due to overbooking)?
There are two questions linked to in comments, but no linked questions are appearing in the sidebar. https://travel.stackexchange.com/questions/linked/91409 is also empty.
Also, this post doesn't show up in "linked questions" of the linked questions:
The comments have been moved to chat once, so could this be due to the relevant comment having been deleted and undeleted?
Another example, from Workplace: Having lunch at home. The top comment links to How can I politely decline a team lunch?, but linked questions doesn't include it. This post has also had comments moved to chat, so it's likely the top comment here has been undeleted as well.