Overriding a Custom Function from a Parent Blueprint with no return output in a Child Blueprint results in custom function appearing in event graph of child Blueprint.
1.Create a new blank Blueprint Project.
2. Create a new Blueprint Actor ("Bp_Test")
3. Create a Custom function ("New Function") with no return value->Compile & Save.
4. Create a Child Blueprint Actor based off the Actor "Bp_Test"
5. Override "New Function".
Result: New Function populates the Event Graph
Expected: New Function to populate function graph of child blueprint.
Note: If there is a return value, the function will populate to the appropriate graph
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-75339 in the post.