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Netherlands sept 6th 2020 Hi all, Issue: Guitar signal audible BUT none of the helix effects is audible anymore. Relevant gear: Helix Floor 2.90 + Marshall JVM410JHS, 4 cable method + Midi cable. Last 3 years I used Helix Floor with multiple amps. Initialy through line in, then via FX loop return, only using the amp not its pre amp and then, to include the pre amp, with 4CM. All of that always worked fine. To illiminate needing Marshall controller for selecting channels etc, I updated presets, using Instant Command from command centre, selecting Midi CC. By selecting Midi CC 16-19 (resp channel 1 to 4) + associated value (0-2) to select green/orange/red setting of that channel. Still worked fine, even after reboot of both Helix and amp. Then updated each preset with 1 to 3 snapshots (typically: rythm, crunch, lead) and did full bown test. All worked fine, it allowed me to use all presets and their snapshots and controll the Marshall. Using Mode, I could even swap the helix display, to see and toggle on/off any of the effects used in each snapshot. All in all, it did exactly as I wanted. But then I rebooted both Helix and Marshall. All snapshots still worked, I could still control the Marshall as intended, but NONE of the defined effects (Mod, Delay, Dist … etc) was audible anymore, were as the Helix (and Edit App) did show them as active! I tested (in between Helix was rebooted): Created a new preset with only Send/Return block for 4CM and 1 effect block => result: guitar audible, effect not. I tried many. Repeated previous without the Midi cable => result: guitar audible, effect not. I tried many. Restored Helix backup from before the snapshot settings but with the midi controlled presets. => result: guitar audible, effect not. I tried many. Restored Helix backup from before the Midi setup. => result: no sound at all Reset Helix to facory settings + created preset with Send/Return block for 4CM + effect block => result: guitar audible, effect not. I tried many. Is it something I overlooked, or is my Helix broken? regards Eric NB I did raise a ticket, but i can not wait 3 days to get a reply, I totaly depend on the Helix for my sound.