Member can't see discussions any more
I am currently building up a vanilla forum. Most of the time I am logged in as admin / moderator. After a while I am checking the progress by logging in as member. Now, for the second time, my member account is not able to see any discussions. When I am visiting my forum as guest, moderator or admin I can see all the discussion. As a member I am told, that there are no discussion.
Does anybody have an idea what's the matter with this? I can't figure out the reason for this but I don't want to take the risk to have such an issue if the forum is going live.