I would personally make this a new combo since spacing changes. I would also recommend that you make it change direction to more clearly show the player that the spacing is changing.
01:36:818 (2) - fix timing, this is 1/4. e.g. : 01:36:000 (1) - , 01:36:204 (1) - , 01:36:409 (1) - , 01:36:613 (1) - ,
01:36:636 (1) - still unsnapped
01:36:000 (1,1,1) - 1/12 sounds really weird, please refrain from overcomplicating the rhythm