BrowseTree reports zero (0) hits in all categories?
BrowseTree can get stuck on zero if the cached data is wrong. This seems to happen when you add, edit or delete records :-( (It may be a server issue, rather than a WODA issue but it bites WODA hard). The count is kept in _cache but there may be zero byte search results cached in _qry.
The solution is to clear the cache. Then, with user status, BrowseKeywords and select a Search. Your BrowseTree will now operate correctly.