Pin removed on project load

Hi

I currently have a problem where whenever i open my project this one pin in the picture is disconnected.
grafik

Specifically the input pin for my DragDropOperation is missing every time.

I have create my own DragDropOperation with my own payload but for some reason the parameter for this variable keeps getting removed on project startup.

grafik

When i select ‘None’ for the class and then reselect my custom DragDropOperation the pin is reconnected until i reload the project.

This is the only place in my code where this happens.

I’ve seen a similiar problem in an older post but have not found a solution for it yet.