Echo above, ensure your line-outs in global settings (XLR and/or Line outs are Line and not instrument level), and something I only recently learned, use the big knob at full for the full signal.
The other thing is 2 years in and I'm still finding things I love and more and more an appreciation of the unit (Helix LT in my case). Don't be too quick to judge if at first, it's not quite what you expected.
Like a good amp, it takes a bit to figure things out and balance everything. Guitar, playing style, output volumes, gain structure, etc.
Good luck.