Hello!
You’re trying to force Unreal to do something it doesn’t want to do.
The CREATE_WIDGET node will only communicate with WIDGET BLUEPRINTS.
The “Owning Player” MUST be an (active) controller. (Hover your mouse over the BLUE PIN).
So, if you want it to belong to a Pawn, then you need to get the Pawn’s controller and plug the reference to it in the “Owning Player”.
An example:
