Setup Course Students (s1, s2), editing teacher (t1), non-editing teacher (t2) with Forum tracking enabled. Groups g1 and g2. With s1 in g1 and s2 in g2. Preferences > Forum preferences. Enable " Forum tracking " Forums f1 and f2. Set f1's " Group mode " to Separate groups As a teacher or admin, go to f2 Click on the cog menu and press "Permissions" Search for the " mod/forum:readprivatereplies " capability and remove the "Non-editing teacher" from the list of roles under the " Roles with permission " column. Test Log in as a student s1. Create a discussion in a forum 1. Create another discussion in forum 2 Log in as t1 Confirm that you see: 1 unread post for f1 (since editing teachers have the " moodle/site:accessallgroups " capability) 1 unread post for f2. Create a normal reply to s1's post in f1. Create a private reply to s1's post f1. Create a normal reply to s1's post in f2. Create a private reply to s1's post f2. Log in as s1. Go to the course homepage. Confirm that you see 2 unread posts for both f1 and f2 (one for t1's normal reply, and the other one for the private reply) Log in as s2. Go to the course homepage. Confirm that there are no unread posts for f1 (since s2 does not belong to s1's group) Confirm that you see 2 unread posts for f2 (one for s1's discussion post and the other one for t1's normal reply) Log in as t2. Go to the course homepage. Confirm that you see: 3 posts for f1 (since even though t2's not in a group and has no " moodle/site:accessallgroups " capability, it has the read private replies capability) 2 unread posts for f2 (one for s1's discussion post and the other one for t1's normal reply) Open