Error with event dispatchers

Development Programming & Scripting Blueprint
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1

I get an error when dispatching an event from two widget blueprints to my level blueprint. The error i get is: Blueprint Runtime Error: “Accessed None trying to read property CallFunc_Create_ReturnValue2”. Blueprint Menu Function Execute Ubergraph Meny Graph: EventGraph Node: Bind Event to GoBack.

There is my first widget blueprint:

There is my second widget blueprint:

There is my level blueprint:

2

Those bind events in your level BP, you have to specify the widget BPs right? Did you assign values to those variables?.. ( you have to say which instance of the widgets you’re waiting for the even from ).