Board Thread:Support Requests - Designing Your Wiki/@comment-44697621-20200825203624/@comment-168424-20200826005932

Oh, I was wondering what the bug that Sophiedp implied was a problem and it seems that DiscussionsActivity also adds a link in Recent Changes (and Discussions Activity) to Wiki Activity that doesn't work, since that special page no longer exists in UCP. So, keep a look out for that.

Maybe the dev will just remove that link, since at some point there won't be any legacy wikis with that special page.