[Jeff Sayre]

Correct. The meta key “bb-config-location” will only be located in the wp_sitemeta table. What I was suggesting is that their may be duplicate (multiple) entries of the “bb-config-location” meta key within the wp_sitemeta table.

Make sure that you have throughly scanned the entire table for that possibility. I have seen this happen with other meta key, meta value pairings before.