Change blueprint UStruct default value cause editor crash

drive me mad,
Repro Steps:
1、Create an blank blueprint project
2、Create a blueprint UStruct “Base”
3、Create a blueprint UStruct “BaseList”, add an array variable to the struct, type is Base, for example “dataList”.
4、Create a acotr blueprint
5、add a map variable to the actor blueprint, key type is int, value type is “BaseList”
6、open Base struct, change default value, and the editor will crash

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