[Crash 4.25/4.26] Structure with Class Reference as key and set default values crash engine

Development Programming & Scripting C++
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1

Exemple:

 Structure{
        map{
           key : Class Reference "X"
           value : Structure{
                  array: Class Reference "X"
                  array: Enum "Y"
            }
        } 
   }

This image explains the structure:

333083-ueproblem.png
333083-ueproblem.png1080×1612 171 KB

The engine crashs many times with this schema, look at this gif:

333084-problemue-1.gif

2

What’s the meaning of doing it on tick? Surely begin play is enough?

3

This is just one simple example to show how to achieve that bug, I do not use this project as my main project, it is just to test things. But I found this bug in my main project.

4

Problem is still in 4.26.