If so then i must've missed it, even if it happened in-game i can't remember to come across an event cahin for lollard uprising, only sporadic lollrad uprisings now and then
In my Papal State->KoG game something strange happened regarding those reformed heretics...
I wanted to take Southern Italy (had 2 border friction cores) but sadly it was completely annexed by England. But suddenly I saw rebel uprisings in english homeland. They didn't have exhaustive wars before (no peasant wars or time of troubles either), just +1 stabilty, but thats not that bad.... Anyway, those reformed heretics started to spread throughout England from nowhere so that I didn't only DoW and annex Southern Italy but also started a naval invasion (!) as little papacy.
There was only a 5k rebel stack left and a 20-25 k England stack who did not move out of London. Even when I was taking province after province (except the ones who were occupied by rebels).
After a while about 6-7 provinces defected to Utrecht (incl. a CoT in Yorkshire), probably because it was the nearest reformed country.
I still don't get it. Really strange, England could have easily crushed them.