can't move pad end points when using buffers 2 or 3

[dndrks]

https://llllllll.co/t/cheat-codes-2/38414/10

looks like encoder math is weird!!

[dndrks]

fixed with https://github.com/dndrks/cheat_codes_2/commit/9b4d241639f66b1bab4813960075d0c7d36f4449