Color ID map baking problem

Sour_Ass

I have a highpoly and lowpoly models of basket, and i want to use baked color id as mask for opacity after, but it doesn't bake at all. I assigned new material on HP model and tried to bake in maya and marmset - nothing, just flat texture. I don't know mb i don't see something obvious here, pls help. 

Sour_Ass

Oh god such a shame) i just had to combine hp and lp with different colors to bake on lp, well i solved it)