Elgin is the correct one, Chicago/Montclare is the old one. First pic is opening Ring for me, it says Elgin which is correct. Same with second pic. Third pic is when I go into Neighbors, it shows Montclare which is wrong and I cannot click Montclare. Fourth pic is when I click the Settings gear to the right of Montclare, which shows the old address in Chicago (I also can’t click that).
On my husband’s side, everything says Elgin. No trace of Chicago/Montclare.