During the upload of the data of the Vendors and Clients, a lot of problems happening and one of them was the House_Num1 without any values.
Checking for the ones that were empty and narrowing the search for just the ones that the ADDR_GROUP was BP, I've founded three differents ADDRNUMBER for the same name.
Follow printscreen:
The second ADDRNUMBER is related to the Client and the third Vendor.
And the first addr. no.? Is related to what?