Ipstenu (Mika Epstein) on "Error in the title bbpress forums"

Version 4.4.2 the WP noticed that no longer display the name of your forum, instead of them being written Error 404: Page Not Found. Moreover, the entire page is displayed normally, breadcrumbs also displayed normally.

Here is a screen: http://i.imgur.com/i3zGWlp.png

I tried version 4.5 RC2 error is present.
I downgrade to version 4.3.2 and the name appeared.

Can you confirm that this is a bug that is with the plugin bbPress?