I want to dig up this thread – @macauley86 did you ever find a fix for the forum thinking it was also part of the blog / a blog post somehow? I’m having the same issue myself. For anyone who doesn’t understand the issue the breadcrumbs will display something like ‘blog > forum’ and the menu highlights ‘blog’ and ‘forum’ at the same time.
I went through the trouble of creating a slightly more watered down version of my template for bbpress and named it ‘bbpress.php’, trouble is it’s still having mixed feelings on whether it should be a blog post, just a forum or in this case both.
Where to even start with a question like that. You do realise you have essentially just asked how to build the digital equivalent of a kit car..?