Sale document delta in duplicating

Hi,

The issue is with sales data delta is duplicating.

For ex: sales order - 2118206 in ECC(SP1) is showing as only 1 change

happened in ECC.

Whereas when it is pulled to BI , in PSA we see 13 records .

Extractor - 2LIS_11_VASCL

Similar issue in sales order - 2090110