Issue with BLE step

Hi 

I have got the following scenario. I am trying to run BLE step to Populate Series A in the DB.Series A has got the client expression which is the Multiplication of series B  and Series C.series B has got server expression which will pick the value from sales_data table. Series C will pick the value from series E only when series D is Null.Seires D will pick data from sales_data table. Series E will pick the value from table mdp_matrix.Now the issue is that the value from mdp_matrix table is not getting picked up by BLE.I have the following question on the above mentioned scenario.