When an element of a data asset is copied into another field, the two fields become "linked" and further edits to one field begin to affect the other.
UENUM() enum class ETestEnum { Random, List, Of, Enumeration, Values, Count };
#include "MyObject.h"
UPROPERTY(Instanced, EditAnywhere, Category = "Default")
UMyObject* Data[ETestEnum::Count];
Result:
Both dropdowns are reset to None
Expected:
Only the dropdown next to the clicked arrow updates
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-32926 in the post.