Clean the gutter of the Clean the Bungalow as last. For me it didnt pop at first so i tried multiple methods but a restart was required for some reason.
AFAIK aslong as the last gutter is cleaned it still pops but others say you need gutter x4 on the todo list for it to pop. Since mine was bugged i did the x4 gutter after a restart (also tried it before but didnt pop).
You can find this mission in Free play -> Locations -> Clean the Bungalow