Problem switching modes

Hi newbie user here.

I am building a midi controller using an Arduino.

I am trying to switch modes using a single button and mode loop using the ‘select mode’ option.

Ableton receives a Midi message, but only Mode 1 can be selected successfully.

Clicking the button to scroll to Modes 2 & 3 gives the error message ‘snapping is off for this control: check min/max values’, in the Ableton message box. Then when I scroll through to Mode 1, it selects correctly.

I have checked the min/max values for all three modes and they are all the same, set to the default setting.

It’s probably something simple but any fixes or workarounds would be greatly appreciated. Thanks!