KPP + FS-2 footswitch

I have a trs dual footswitch connected to the KPP.

System setup is:

Mode=Dual switch,

Switch ring= next rig

Switch tip= previous rig.

Whenever i want to switch to next rig or previous rig, I need to stomp TWICE on the external footswitch. I would have expected a single stomp would suffice?

Ok it’s probably because the Leadfoot fs-2 has latching switches. I need momentary switches.