how Can I make my DFF appear on edit absence page

Summary:

I have created a DFF in ANC_PER_ABS_ENTRIES_DFF which displays when adding an absence. However, when editing an existing absence it does not display.

Content (required):

How can I make the DFF show when editing an existing absence?

This is the DFF setup. I have found it does appear when adding a new absence and then when editing that absence as well. However it does not appear when editing an existing absence. Is there something I need to do to make it appear on existing absences?

This is how it appears when adding a new absence.