print pick slip does not pick lot based on lot expiration date

Dear All ,

we use commitment method 3 (lot expiration date ) .

But , let's say we have 2 sales orders with the same item codes with order qty as 15KG and 20KG  and qty available is in different lots .as below

11.0000		201611090039	07/08/2017
18.0000		201612030057	01/09/2017
18.0000		201701070027	04/10/2017

what is happening is , it is picking 1st 2 lots only for both the orders as below

CH01	201611090039	17009025	11.0000	SO	540	560	20002
CH01	201612030057	17009025	4.0000	SO	912	560	20002
CH01	201611090039	17009026	11.0000	SO	540	560	20023
CH01	201612030057	17009026	9.0000	SO	912	560	20023

ideally , it should take remaining 14 Qty from lot 201612030057 and then remaining  16 qty from 3rd lot 201701070027