According to the fleet data here (and assuming it is up to date) https://en.wikipedia.org/wiki/Wizz_Air#Fleet https://en.wikipedia.org/wiki/Wizz_Air#Fleet a sch

According to the fleet data here (and assuming it is up to date) https://en.wikipedia.org/wiki/Wizz_Air#Fleet https://en.wikipedia.org/wiki/Wizz_Air#Fleet a scheduled 180 seat plane would not have been a A321neo and hence not been affected by the mentioned Pratt & Whitney engine problems. But since the A320-200 is the smallest aircraft in their fleet, maybe the flight was scheduled with a A321neo but got replaced with a A320-200?