BIAS FX2 - all bypassed still affects signal

  • I have been trying to nail down some issues with my sound in BIAS FX2 as an AU plugin w/Logic Pro. I have found that if I remove all effects and turn off amp & cab, my DI guitar signal is still processed in some way. There is less sustain & it sounds like there is some sort of downward expander or gate active. Is there some processing happening even when the signal path is clean?