Current behaivior: You have two Delay things in the rack, '1' and '2'. If you remove '1', '2' becomes '1'.
Wished behaviour: '2' always stays '2'
Reason: more fexibility with MIDI control between the presets, having two different sets of MIDI messages for '1' and '2'.
BTW it is behaving as wished already now, but until you change presets