Bug in Forum Discussion Display


I have noticed a new bug in the forum over the last couple of weeks. It goes like this:


An OP opens a discussion with a question.

I add a comment to the discussion.

The OP replies to my comment. I get a notification of the reply.

If I follow the notification link, I see the OP's reply but without the usual Like and Reply buttons.

If I locate the discussion in the main discussion browser, the OP's reply is missing.

This has happened three times (with different OPs). It happens on two PCs with different OS and browser versions - including the latest Chrome version 89.0.4389.90.

Here's one example discussion

The OP's reply is not shown in the normal discussion browser.