I have a question about my Ask Different post: Can anyone explain to me the difference between Terminal, CLI, CLT and Prompt?
Inbox notifications for comments take you to the question page and scroll down the page to highlight the new comment.
When you’re already on the question page that the notification is for, only the scrolling needs to happen. There’s no page navigation which would refresh the page, so the page relies on being told about new comments and updating the page using WebSockets.
Occasionally these WebSockets can be disconnected and fail to reconnect, or be blocked by a firewall or ad blocker. Therefore, because the inbox notification doesn’t reload the page, and the page hasn’t updated itself to show the new comment, the notification appears to not link to anything since the comment it tries to scroll to and highlight doesn’t appear.
Refresh the page or navigate away and then select the inbox notification for the page to be loaded again completely, which will include the new comment or post that was missing.