Filter Table Visual by EndDate (Inactive Relationship)

Hi all,

I have a very simple model and I’m stuck on something that feels like it should be straightforward.

Staff table with columns:

• Person

• StartDate

• EndDate

Date table with:

• Active relationship → Staff[StartDate]

• Inactive relationship → Staff[EndDate]

Goal:

• A Date slicer drives both visuals.

• One table visual shows all people who started in the selected month/year (this works fine via StartDate).

• Another table visual should show all people who left in the selected month/year (based on EndDate).

What I tried:
I created this measure:

Leavers =
CALCULATE (
    COUNTROWS ( Staff ),
    USERELATIONSHIP ( Staff[EndDate], DateTable[Date] )
)

This works correctly in a card visual (I see the leaver count for the selected month).
But when I add Leavers as a filter on a table visual (e.g. show only rows where Leavers > 0), the table goes blank — no rows are returned. It works if I add the Leavers measure as a column in the table but I do not want this.

Question:
How can I filter a table visual so that it shows only those staff whose EndDate falls in the slicer period, given that StartDate is the active relationship?

Thanks in advance!