Sometimes the power level of microwaves are different so they don’t cook at the given time. If your’s did not set, you need to cook it longer (prob about a minute more).

I tried this recipe today and all was well I guess except after the last microwaving, I spread it and it dried but many areas were still uncooked and they wouldnt roll and I felt it was undercooked. I followed your timings. what to do now? How long do I need to cook it for? another minute or so ??