The finish will become cloudy and not glossy if you haven't given enough time for all moisture to evaporate before the next coat is applied(Moisture Trapping). Corrective procedures are the same as in troubleshooting question #1.

Correction
Remove Steps II & III with ammonia and a Scotch-Brite pad. Reclean surface thoroughly, rinse with plenty of warm water. Any areas of high gloss left on original surface must be sanded dull with 320 grit wet sandpaper. Place 2 coats of Step II allowing 7-10 minutes between coats: if using a fan 30-45 minutes if air-drying only. Place 3 coats of Step III, following above guidelines.