Same issue over here. I’ve been brainstorming a hack solution. Since there’s no output routing from GarageBand, could I mute all other recorded tracks, with the exception of the DI and the reamped track, run a 1/4” cable from my headphone out of my interface to the helix input? Would this cause any latency or audio fidelity issues? Anyone every try such a workaround?
I’ll try this soon and report back my findings.
thanks!