Hi I purchased the line 6 m9 and i've been recognizing and intermittent problem with a noticeable volume drop when the signal is going through the dsp (either with an effect on or in dsp bypass).

the strange thing is it only happens sometimes depending on how the 1/4 plug is positioned, and some upward pressure on the 1/4 plug will usually restore the volume.  I just wanted to check in with you guys before i exchanged my unit.