I can see a topic in activity feed that has been moved and is now in forum that I am not allowed to read. The error message is weird as it's supposed I am not logged in as customer: 

However, I can read some parts of the topic's discussion in activity stream. Normally it should not be shown there or does it work as desired?

Edited August 26, 20186 yr by Sonya*

We're aware of an issue with our search index. The error is a generic 'no permission' error that has been customised (you can do this in the AdminCP per forum)