Calculation Group is Overriding My Measures

Hi All - I'm using calculation groups, but it appears when i click into the visual where a calculation group value exists, the filter context is messing with my other measures, and is in fact overwriting them. (ie bring back a value from the measure I clicked into, rather than the measure which the visual is based upon). 

I get that this is filter context getting passed to the visual and I assumed that using some sort of combination of all or remove filters pointed at the calculation group table would fix the issue. 

That doesn't appear to be the case. Is this a bug? Or is there a good way to handle this?

Its worth noting that my calculation measures general start with selectedmeasure(). I have not yet attempted to rewrite the calculation groups with an if statement so that only the relevant measures are modified?