Hello, I have the same issue.
I work with BuddyPress, bbPress and a them from Nitty Gritty Klein (Music theme).
This theme creates groups. Forums can be allocated to groups.
A member of a group can create a topic and he can reply. No problem.
But in the menu there is an option forums, you can see your own contributions.
Logged in, a member sees ‘You have not created any topics.’ But he has.
Going to the forum via the group, then he can see his own topics etc. No problems.
I have repaired with tools/forums.
I have 3 private forums, and 1 public group and 2 private groups.
There is something wrong with the conflict between private and public??
