If my divine tracker ranger has his alignment changed and is no longer within one step of his deity alignment, does he lose any class features?
Technically, they no longer qualify for the archetype.
As to what actually happens....unclear.
I would probably rule it as they lose spells and domain powers until they either take steps to begin worshiping a new deity that fits their alignment, or correct their alignment to be within one step of their former deity. However, this is just how I would rule it. Not sure it's necessarily supported by the rules.
Looks the same to me, and I would rule the same as Claxon.