Association Question for 3 Way Dimming of "Master" switch

From what I’ve read, I believe you should have 4 associations - only group 3 and 4. Group 2 would be used instead of 3&4 with another device that doesn’t support Multilevel Switch Command Class, like the LZW30-SN.

I think the dimming is not working because of the Group 2 association on the Hall side.