I've been using the HX Effects in 4CM for years. It has suddenly developed a problem where the FX loop on path A is extremely quiet, nearly muted and very distorted. The last couple of times this happened, rebooting the unit worked, but now that's not fixing it. I've tried multiple patches, even a fresh patch using nothing but the FX loop effects block. If I turn the FX loop block off, the signal is fine...if I move the effect block to path B the signal is fine. Any advice is appreciated...hoping it's not a defect in my unit.