Before leaving for college, Jughead mentions that he went to stay at the Andrews house but it was empty as it was up for sale. When Archie returns to Riverdale he says he is going to stay at his gym because his house is rented. Yet, a short while later he is back living in his house with everything there as if nothing happened.
It's supposed to take place 7 years after graduation (2027?) Yet Veronica says "it's 2021" during dinner with her husband.