Daemons in IC not became hostile

On live in that place was spawn 4 different daemons (desided by random which daemon will spawn and timer of respawn another daemon). After they being interact with (by using rmb) they became hostile and attack person who interact with him and anyone else. If daemon not being killed (they was very high level champions) he despawns after period of time and another respawns in random time after.
Now that daemon just standing there not became attackable.