When I set my delay time manually and then at some point I use the AudioTap, how can I go back to the setting I adjust manually in first place? If I turn it on and off by the footswitch, delay time remains working in the tempo I set with the AudioTap and not what I set manually with delay time knob.
Indeed, when you bypass the pedal and turn on the effect again it will keep the same delay time previously inputted with audio tap tempo. You can move the delay knob slightly to get back to the delay time previously set with the knob. The other way to change delay time will be to input a new Audio Tap tempo.
This FAQ is both for Flashback and Alter Ego Delay and Flashback Mini Delay
Flashback Delay: Turning off the tapped tempo