Hello all, I just received my brand new M9 in the mail. When I hit the tap tempo/looper button, there is a staticky pop noise. So far it's every time I touch it. I am using the included line 6 power adapter and it's plugged into a different outlet than my amp. The other buttons do not make any noise. This problem is at it's worse when using auto swell and particle verb as the noise builds up and creates a swell of static. Is this fixable or should I return it? Thanks!