Multiple FU's are not created for the sales order

[KLVenkatesh]

I created two orders 10003619 and 10003648.
For the order 10003620 – I used different SH parties on the same day for two materials and the document flow shows four FU’s as expected.
For the other 10003648 – I used different SH parties in the line item level with different dates and also I maintained the delivery group “01”  for both the line items in the header level but when I’m checking the FU’s its showing only one FU without splitting the quantity. So, basically the item has to be split with respective of the different SH parties/ Split criteria right? Please correct me if I’m wrong.

My FUBR is having the consolidate as much as possible and item split tick marked.

Split criteria – 4 , Rounding – 1

My expectation is for the order 10003648 - It should be create 4 FU's