Please fix achievement

Why most achievement is broken? For example, i have do King of hill match but i dont get Higher Ground achievement. There is more like Easy as 1-2-3, even achievemtn for analyze match like Second Opinion and Hindsight 20/20.
Or maybe i wrong about how to achieve that achieevement, i dont know

Variant achievements, other than 4PC, require playing the variants on the Play server and not the Variants server.

What do you mean by variant server and play server? Not by chess.com?

In the menu Play > Play and you have to change Standard to your preferred variant to get those achievements

Play > 4 Player & Variants is the variants server and those don't give achievements, other that 4PC.