Filtering visual based on calculated measure

Hi, I have the requirement to display:

1. schools who have only opted for a specific subject (Personal Project)

2. display all schools not in Graph 1 (opted for Personal project and other subjects). To identify this I have created indicators and to handle Graph 2 created a calculated measure which sums up the indicator at school level (last column below).

DAX used for the sum of Not PP Ind 1

Sum of Not PP Ind1 =

CALCULATE(sum([Not Personal Proj Ind]), all('TBL_DM_FCT_SUB_COMP'), 'TBL_DM_FCT_SUB_COMP'[SK_SCH] = SELECTEDVALUE('TBL_DM_FCT_SUB_COMP'[SK_SCH]) && 'TBL_DM_FCT_SUB_COMP'[TXT_PROG] = SELECTEDVALUE('TBL_DM_FCT_SUB_COMP'[TXT_PROG]) && 'TBL_DM_FCT_SUB_COMP'[Session] = SELECTEDVALUE('TBL_DM_FCT_SUB_COMP'[Session])  )

 

The filter on indicator (is not 0) works when I display data at All School or school level.

 

But when I perform the breakdown for subjects (not within a school) the data is not returned as expected. I suspect it is because the calculated measure is not defined to return the value at Subject level.  

Expected:

What is returned on applying filter Sum of Not PP Ind1 is not 0

I have been struggling for the past couple of days, any help on this will be appreciated. Thanks!