When I make assignments to the Duo footswitch, sometimes the labels show and sometimes they don’t!
Put the Bollie Delay on a pedalboard. Assign footswitch 1 to on/off and footswitch 2 to “Tap”. You should find that the on/off label shows OK but the second switch show’s the default text “Foot 2”? rather than “Tap”. Changing it to a custom label doesn’t help.
A similar problem occurs when using the Loopor pedal.
Assignments should always show the parameter name or custom name.
Open the controller menu (hold left knob down), navigate to Info > Versions and write down here the version.
Duo release 1.10.4