[Xevo]

Had the same problem with an older buddypress template (deprecated template) on a new buddypress release. Gave me a 404 even when I used either of the forum installs. Then when I used the newest release of the template it worked fine. So yes, its most likely the same problem.

Why not just take an existing template that works and edit that? As far as I know there shouldn’t be any major changes on templates anymore.