The Instanced Subobject values for the Child_BP are same as what the Parent_BP subobject values are changed to before compile and saving both Blueprint Objects.
Tested in 4.18.3 (CL-3832480), 4.19.2 (CL-4033788), 4.20 (CL-4165543) and 4.21 (CL-4162595)
4. Create a blueprint deriving from the ObjectWithSubobject named Parent_BP
5. Create a child blueprint from Parent_BP named Child_BP
6. Set the Subobject property in the Parent_BP to Subobject
Expand the Subobject property and input "Parent" the String property
Expand the Subobject property in the Child_BP blueprint
Expected: The Child_BP should have default values.
Result: The Child_BP values has the same values that the Parent_BP has been changed to.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-61216 in the post.