Re: Forums Bug: There are no posts for this topic.
I have encountered this bug, as well – many times….typically when I have moved a WP/BP site from a localhost to a new domain – – or when I’ve assisted in the transfer of the site to a new host.
After banging my head for awhile – I resolved it by reinstalling the forums (easy – just click the Forum Setup in the BuddyPress section in your Dashboard. and click re-install) – then went into each group that has forums enabled, as admin – disabled the forums for that group, then re-enabled the forums for the group…after that, it worked.
Not sure if its a bug, or if this is the accepted solution – however, it’s what worked for me on three completely different sites where I experienced this particular problem.
Timely, yes (especially on a site with lots of Group forums) – but it worked.
Additionally, this thread reports that this problem was caused due to the bbPress sitemaps plugin – not sure if you’re using that: https://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/there-are-no-posts-for-this-topic-when-there-are-posts/
Good luck!