Monsters panicking twice
There seems to be something odd with the panic behaviour of monsters, like there would be two different panic flags they can get ("panics" and "seems to panic"). This kind of message burst is rather common nowadays.
The great red wyrm is hit by the cone of cold! The great red wyrm is badly injured by the icy blast. The great red wyrm panics! The great red wyrm regerenates. The great red wyrm suddenly seems to panic!