Google Maps address not working with CSV Import

I am trying to import business listings from a CSV file using the All Import Plugin. All info is importing great EXCEPT Google Maps is not locating the addresses. The addresses display in all the map custom fields and the whole address displays in the Map Location field, but google maps does not pin point the address. I have to manually go in and re-enter the address to get it to locate. Is there any way anyone knows of to fix this??? I am working to import thousands of listings and I don’t have the time to go in and manually fix every single address. Any help would be great! Also, I’m still on Directory version 6.6.3. I have had changes made to the code/functions that I don’t want to lose.