[BUG] Unable to compile Blueprint. Assertion Failed: ChildClass->GetSuperClass() == ClassToReinstance || ChildClass->GetSuperClass() == DuplicatedClass

Development Programming & Scripting Blueprint
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I also have this crash quite regularly. In my case it seems to be related to Blueprint inheritance. If I follow this procedure when changing the base BP the crash doesn’t happen:

  • Open up the base and all child BP in tabs
  • Force recompile each child BP
  • Force recompile the base BP