[Bug w/ProjectFiles] Default Value of blueprint reset to parent's default

Well, as i said its random, I really want to give additional information but at this point i have no idea how you could reproduce this issue: (

But i tried those to trigger it ;

  • Changing variables at parent class ( add/renove varibales, change default values )
  • Changing Struct And Enum Variables which in use at parent class ( add/renove new varibales to struct, or change default values )
  • Reference parent class from another actor.
  • Remove empty Components from actor. Or add new Components
  • “Force to delete” referenced actors in parent actor.
  • Even shut down computer when project running.

But nothing happened, childs didnt reset to parent default values. ( at least for 1-2 hours)

And i also tried those to fix it ;

  • Clean all unused variables at actor.
  • Clean all warnings from cook.
  • Migrate project to clean one.

And non of them works either.

But i notice something;
All those parent classes have something common, which is all of them using at " spawn actor from class" node from somewhere ( in level BP or in Character BP … )

I am not sure if its relative but this is the only thing i can figure so far.

Edit : And i think its only happining if childs are " data only bluepirnt"