I recently upgraded to 4.5.0b from 4.2 and have the following problem:

I had to try a few times to import my contacts correctly due to my mis-mapping of fields. (why doesnt SugarCRM automatically recognise its own field names). Each time I then deleted all the contacts and reimported again.

Now, my contact list is complete but when I export I get multiple copies of each of my contacts.

why and what can I do?