I have attached a repro mission. Setup a dedicated server with headless client and load/join the mission. Check the server's RPT for the automated test (delay of 60 seconds).
u1 = AI group leader
h1 = headless client game logic
If auto test fails, manually run these commands in debug console on server and check server's RPT:
1. diag_log (group u1) - returns clientID of dedicated server
2. diag_log (group h1) - returns clientID of Headless Client
3. (group u1) setGroupOwner (owner h1)
4. diag_log (group u1) - notice locality has not changed, clientID should be equal to Headless Client clientID but is not