Mine has been a little quirky when I've moved it on my board a couple of times. It seems like unplugging the cables from the effects loop temporarily disabled sound for some reason, almost like the jack was still somehow engaged and looking for a signal despite the cable being unplugged. "Exercising" the jacks seemed to fix it, so their might have been some dirt, although I've never seen dirt in an effects loop totally shut off a pedal before, usually it just adds noise. I also had one brief moment where the channel switching seemed to stop working. Unplugging everything and then powering the pedal back up again fixed that.
I've never had a problem as long as the pedal stays plugged in on my board, always just when I've moved it. I've also moved it several times with no problem.
As an aside, I've been using matching mid-70's P (with flats) and J (with rounds) basses as of late at my gigs. Having two different channels on the Le Bass has been really handy, as I've been able to dial in a more "Marcus-y" vibe for the Jazz using Channel A and more of an old school vibe with the P using Cold Fusion mode and blending in just a little of the Channel A to fill out the sound. Way cool! I love the sound so much that I won't gig without it, even if I'm only using one bass and don't need any of the other pedals for my gig.