Unreal Engine Issues

UE-17675

Circular dependency causes a component to become null when compiling a subclass

Circular dependency causes a component to become null when compiling a subclass

UDN
Description

In a project with circular dependencies, components belonging to a native base-class are nulled when a blueprint sub-class is compiled.

Steps to Reproduce
  1. Download attached project
  2. Open project
  3. Open the TestActorChild1 blueprint
  4. Click on TestComponent1 (inherited)
  5. Notice that the details panel looks like the attached image
  6. Compile the blueprint
  7. Click on TestComponent1 (inherited)
  8. Notice the details panel is basically empty now

Expected: Details panel should retain previous information
Result: The component becomes null

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Fixed
ComponentUE - Gameplay - Blueprint
Affects Versions4.8.1
Target Fix4.9
Fix Commit2638830
Release Commit2639134
CreatedJun 25, 2015
ResolvedAug 5, 2015
UpdatedApr 27, 2018