Dax not calculating totals correctly for last calculation in Knock on Calcs

Hi there, I have a few knock-on Measures. In the same table, all the preceding calculations are working out the totals correctly. When I get to the last knock on calculation the figure doesn’t total correctly. I know this has something to do with context, but i can’t figure out why all the preceding measures are accurate except for one. Please help. There are a lot of zeros. I have tried, hasonefilter and tried the sumx to add the selected months in the filter. Help wonderful Community
Test.pbix (460.3 KB)
Data.xlsx (29.4 MB)

Hi @SammiP,

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Cheers,

Enterprise DNA Support Team