I guess you might want to look for places where the plugin is hooked to one of the following:
– `posts_request`
– `parse_request`
– `pre_get_posts`
These are places where plugins can directly modify the way that the WP_Query SQL is built. It’s possible that WLM is interfering at one of these points – at least it’s someplace to start.
It sounds like something is modifying the SQL query before bbPress has a chance filter ‘posts_requests’ via _bbp_has_replies_where(), so that the search term in that function is no longer found in the query string.
I recommend disabling plugins until you find the culprit.
