If you go to a player performances thread (For example: Dan James
https://www.redcafe.net/threads/daniel-james-2019-20-performances.448191/ ) , then More options (to the right of Threadmarks, Ignore thread, Watch), then Who Replied ? - It will give you page 1 of the list of posters, with links to their posts in the thread, but it can't cope with page 2 onwards. Instead you get
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(I've tried it on 5 or 6 different player performance threads with the same result each time)
I've tried the same on a few threads in the Manchester United Forum. Appears to be the same issue.