Measure count of graph differs from Measure display on Drillthrough Page

[Anonymous]

I have the following measure below that is displayed on a trend graph . It displays 213 on the graph for Feb but on the drillthrough page it displays 215 . The user click on 213 for Feb and then goes to the Drillthrough page that only displays the measure in a card and it says 218 . 

I have checked all the filters on both pages and checked and double checked the measure and cannot understand this. Any ideas ?

Lost Cust by Month Graph LOST CUSTOMERS = 

var _table =     

     CALCULATE ( DISTINCTCOUNT('Customer'[customer_id]),

            FILTER(SUMMARIZE('Customer', 'Customer'[customer_id]
    
          ),
         
          ( [Previous 24 Months Revenue]=0||[Previous 24 Months Revenue]=Blank()) &&  [Minus 25th Month Revenue]>0.000001 
          ) 

            )    
return  _table

Replication of Error in SAMPLE File attached  ( Tabs lost Customers and the Drillthrough Page ) 
In this example  Feb has 213 for the lost cusotmer count on the Graph which then becomes 215 on the Drillthrough . 
 
PowerBI_TEST

[JimmyKhan2022]

This does not explain the difference between the graph and the drillthrough page . That is not to do with the filters. I have checked the applied filters on both pages and they are the same .

[JimmyKhan2022]

@lbendlin - To clarify, I have put the new measure in play. Thank you for simplifying that . So are you not able to replicate and see the graph displaying for Feb , 220 but on the drillthrough page with the same filters its says 219 for Feb 2023 ? This difference is really confusing me as I cannot see what the missing one is ? Is this something to do with the Power BI version if with the same pbix you cannot see this issue ?

[lbendlin]

Your problem is that the measure returns BLANK() for a couple of Customer IDs.  That is always a source for discrepancies like the  one you experience.

[Anonymous]

@lbendlin This does not cover the problem . I have two visuals on the drillthrough .One with the additional filter and one without . The additional filter was to see if I could get the magical 217 figure for FEB 2023.  If I take the additional filter off which is the measure on the graph I still get the problem ?  I should get 217 on this page and NOT 216 . 

[lbendlin]

I don't see that.

With the extra filter:

Without the extra filter:

These customer IDs result in a blank measure return value

Anyway, I would simplify your measure like this

Lost Cust by Month Graph LOST CUSTOMERS = 
var a = SUMMARIZE('Customer', 'Customer'[customer_id],"flag",if(COALESCE([Previous 24 Months Revenue],0)=0 &&  [Minus 25th Month Revenue]>0.000001,1,0))
return sumx(a,[flag])

and then hunt for the remaining gremlins (measures returning BLANK() ).

[lbendlin]

Always check the applied filters.

The table has one more filter.