I just went deep on the problem and refreshed the “Icon widget” wich was the widget being created. So, refresh all nodes works, among of course with the list i said i did before:
I didn’t start the project on older engine versions and update. I always stayed in UE4 2.27.
I’ve already marked the check box: “Save” within the structures.
*And now, refresh all nodes in File > Refresh all nodes. Go deep on the fallback structure, refresh everything and see if the problem persists.