after very long plaing in ff4ay without save state I can say that there was two times when that problem occured so it looks like its not only save state problem but even one of main problems
also besides that "kill hci buffer.. there coul be command inside" likes to happen + losing control just like i case of wiimote desync
also besides that "kill hci buffer.. there coul be command inside" likes to happen + losing control just like i case of wiimote desync