Hi!
I don’t think you have understood the Erwin’s question..
Erwin, it’s normal.. when you activate the deep integration by BP, it updates a table (bp_options, or something) with the new bbpress address (inside bp root).
So you need to access the bp or bb database, find the link you think is wrong, and edit it with the right link.
..my suggestion is to reinstall BP and BB, if you haven’t user or important data.