Just bought a couple of passageway (no lock) door handles from Kwikset. Problem is that if you tighten so the handle doesn't slide around then it binds and the latch doesn't release after your release the handle. If you loosen the screws then the latch moves freely but the handle jiggles and is too loose. There is no happy medium.
The problem seems to be that the handle side with screws is metal on metal. The handle turns within the metal circular part with screws. When you tighten the handle down that metal on metal contact doesn't allow the knob to turn back on its own.