Hi all, been having fun with my Helix LT and enjoy using the toneblend presets to mix together multiple amps/cabs in my presets. I came across a bevvy of IRs (thanks to all those in the forum who have posted those locations), but the problem I have is that I cannot have more than one IR in a preset at a time. If I have two IRs on, the Helix mutes, but if I turn one off, I get tone. What am I doing wrong?