Edited BP Variables show as "Multiple Values" in instanced reference

When a blueprint (A) contains a instanced reference to another blueprint (B) that is EditInlineNew, changing a value B causes the associated variable in A to display as "Multiple Vaules"

Workaround:
Compiling blueprint A causes the variable to update to the proper value set in B

Regression:
No - Same behavior occurs in 4.17.2 (CL 3658906)

1. Open UE4 Editor (any project)
2. Add two classes based on Object (A & B)
3. In class B:
   • Add Blueprintable, EditInlineNew to UCLASS macro
   • Add the following property to the class declaration:

     UPROPERTY(EditDefaultsOnly)
     float TestValue;
     

4. In class A:
   • Add include statement for class B
   • Add Blueprintable, to UCLASS macro
   • Add the following property to class declaration:

     public:
     	UPROPERTY(EditDefaultsOnly, Instanced)
     		UClassB* Inlined;
     

5. Compile
6. In the editor, create a blueprint based on each class (ClassA_BP & ClassB_BP)
7. Open ClassA_BP and set property Inlined to ClassB_BP
8. Open ClassB_BP and change the value of TestValue;
9. Compile ClassB_BP

Result:
After compiling ClassB_BP, the Inlined variable in ClassA_BP shows as "Multiple Values"

Expected:
Referencing blueprint shows the value that was set in the referenced blueprint on compile