Hi,
After the first load, your loading delta load or again doing full loads only?
if you run only full load mean you need to fill your setup tables and run full load every time.
if your doing delta loads then you need to set V3 update methods to get delta records into RSA7.
RSA3 for full load update mode as full or delta for delta records.
Please recheck your steps and try to check again. Even though it pulls wrong data then with data source name you can search for oss note at sap market place. you may find relevant note as per your bw version.
Thanks