No other way for me to describe so let me explain.
I bought a Kemper back in December and it's worked fine until a week ago. I have it integrated with a Helix Rack, the guitar & headphones go into the Rack, the kemper is connected via 4cm. Helix controls the Kemper via Midi. Everything was fine until one day last week I noticed all the rigs had a strange reverb to them. Almost like a doubler effect. Subtle, but there was a definite change that impacted everything. I unplugged everything from the Helix, connected directly to the Kemper and it was still there. After doing some factory restores, the problem was gone.
Yesterday, I connected the Helix to the input of the Kemper rather than the effects loops. Changing a couple patches on the Helix caused the Kemper to crash since it was connected via Midi. Now the Kemper sounds like the input signal is being choked. I'm skipping the Helix and going straight into the Kemper and it sounds like my guitar volume is rolled back to 6 or 7, but so far as I can tell everything is full blast.
My initial factory reset didn't fix the problem. I was going to try again today but thought I'd raise the question. Anyone have something similar happen, or thoughts on why this would happen? Anyone have midi crashes that impact the sound of your rigs?