DAX measure not returning expected result

Hi Fabric Community,

Can you help me with DAX below? The DAX for a measure but didn't return the expected result.

Goal result:  How many overdeliveries happened across the stores in a week? I am trying to get a table like below example

Data:
1) Fact table: carton level information including destination store, promised delivery date & delivered date.
2) Dimension table: destination store and max capacity
3) Rolling calendar: 1 active relationship on promised delivery date & 1 inactive relationship on delivered date

DAX: 

Count of overdeliveries = 
VAR Daily_summary =
    'Fact table',
    'Fact table'[Destination store],
    'Fact table'[Delivered date],
    "Delivered qty", DISTINCTCOUNT('Fact table'[Carton ID]),
    "Max Rece Capa", MAX('Dimension table'[Rec. Cap.])
    ),
    "Delivered qty vs Max Rece Capa", IF([Delivered qty]>[Max Rece Capa],1,0),
    "Week Number", WEEKNUM( 'Fact table'[Delivered date],2)
    )

VAR Weekly_summary =
Groupby(
    Daily_summary,
    'Fact table'[Destination store],
    [Week Number],
    "Overdelivery",SUMX(CURRENTGROUP(),[Delivered qty vs Max Rece Capa]
        ))

Return 
CALCULATE(
    sumx(Weekly_summary, [Overdelivery]),
    USERELATIONSHIP('Rolling Calendar'[Date],'Fact table'[Delivered date]
    )
)   

However, this matrix didn't return right outcome. I created a table using DAX to return Week_summary to check the result accuracy. Then I found that there should be 6 times when the delivered qty exceed max capacity (Store 1, 2, 3 & 4 following the sequence) on Week 7.

but the matrix only shows 2 for Store 1. 

Is this something you can help me to understand why there is such a discrepency? Thanks in advance.

Cheers,

Leesanity