Thats not the issue, but i can spot what is happening , but i cant fix it,

the situation is that

DFB JAN FEB MAR APR

0 4

1 5 6

2 7 8

3 9

Lets say this is the matrix table, and as you can see March is the last non empty month in general, so what i am trying to return is a calculated measure that the DFB will be able to slice through for the months so from that i can do other calculations. on the result