Got some strange problem with my Ultra. Left LED of Input 2 is blinking even if I don't play. I don't have anything connected to Input 2. After some time blinking stops. On Input 1 there is problem with Right LED - it's also blinking sometimes. I have only guitar connected to front input. It's blinking all time when I play - most often when Left LED touches red. I tried with 3 different guitars - no change. Anybody got a clue what's the cause of this? Video shows what I'm talking about: