Put on a instant meeting product that was "top priority". 4 months of good work with an understaffed team, come to find out they had another team in another of

Put on a instant meeting product that was "top priority". 4 months of good work with an understaffed team, come to find out they had another team in another office doing same thing, who knew about us, but not us them... We were naively doing demos while management knew this was throwaway.