Splines can only be edited in viewport when added in blueprint

I’ve encountered an issue with spline components in 4.8 preview. Spline components can only be edited in level viewport when added into a blueprint. Spline components added in a C++ class or to an empty actor can not be edited in level viewport.

Reproduction steps:

  • Place an empty actor in viewport
  • Add a spline component using add component
  • Try to click on spline handles in viewport, you can’t!
  • Save empty actor with spline as a new blueprint using add blueprint/script
  • You can now edit spline in viewport

Duplicate of Splines can only be edited in viewport when added in blueprint - Blueprint - Epic Developer Community Forums