Same Column/Filter - Different Results??

I am baffled right now and cannot figure this out. I have 2 columns: Reservations and Operation.

Operation is basically a filter for the Reservations that include:

1. Create 

2. Modify

3. Cancel

Both are displayed in KPI cards.

My first measure is Total Reservations, and the visual is filtered where Operation="Create". 

Second measure is Total Cancellations, using the SAME Reservations column, but where it is filtered on Operation = "Cancel" to

show canceled reservations only.

One of my main slicers is for Segments. When I select a segment, the Reservations filtered on "create" work fine. The reservations filtered on "cancel" either go blank or give me an error??

I've tried different scenarios and can see the breakdown if I put them into a table. But even if I filter the table to a specific segment, the Cancellations go blank again??  What am I missing here??