I updated to the latest software, etc., today. I have the H90 first in the signal chain, but also tried it after a noise gate. The other things in the chain… noise gate… drive pedal… amp. Nothing else. No noise without the H90. Using the factory supply, but it’s plugged into a unit (like a power bar, but made for music gear, or at least sold as such for electronic stuff). Even louder if going direct to amp, no matter the preset selected. Also, if you play something, you don’t hear it… but as the notes become quiet (or you stop playing), then it kicks in. Different guitars same thing. Also, just discovered that no matter where I plug in the USB, that is causing the noise. In other words, unable to use the editor.