widget hash map object reference doesn't work ?

Development Programming & Scripting Blueprint
1

Hi

I’m trying to make a Hashmap composed of :

  • Key : Object reference classes.
  • Value : Widget Objet Reference.

In my BP i have a severals Widget Objet Reference but i can’t assign them into the Hashmap… Check screen

Help

2

I can fill the HM by writting BP, but it’s annoying …