DSO Overwrite rule not working in Level 2 DSO

Hi,

I have a level 1 which is at resource level (Key Order and Resource).  I have a level 2 DSO which is at order Level (Only Order as Key).  Quantity is duplicated for each resource in Level 1 DSO.  In level 2 DSO I want to overwrite all KF at the order level.

Even though I have KF's in transformation form DSO 1 ---> DSO2 in overwrite mode the KF values are overwriting.  2 records are getting aggregated to 1 record as expected but KF's are doubling.

Is there any setting I am missing.  I was expecting to values to be overwritten since Key is same for both records.  Any help is greatly appreciated

Thanks.