.. and as for the fix (aside from upgrading) Charles says the following in that topic:
Quote
If others are experiencing this problem - a moved or deleted topic will NOT remove itself from a CI after repeated forum stats rebuilds and repeated CI rebuilds - you can safely delete the forumX_recentmeta.cgi file for that specific forum... you can find the file inside the NonCGI/cache-/search_index directory. After you delete the file, rebuild the forum stat files for that forum.
Regards