Custom Tooltip showing Nothing

[strongCoreZach]

I have a matrix with a custom tooltip. Under certain conditions, the tooltip shows nothing when I would expect it to show a value.

In the example below, I would expect the name and requested pto to display.

thank you for any help.

[lbendlin]

Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).
https://community.powerbi.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-...
Please show the expected outcome based on the sample data you provided.

https://community.powerbi.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523