Matinee crashes the engine

Hey, I have an existing matinee sequence which I am trying to add a new key frame in the Z axis rotation. However when I try to add a key frame either through pressing enter or pressing the add key frame button, the editor crashes out. It seems to be hitting the breakpoint in the usual place but I can’t see it because it is source not found.

I worked out what the issue was. Basically because we spawn in our actors and then associate them with the matinee sequence at run time, because the matinee sequence didn’t have an actor associated with it at the time of me adding key frames it crashed the engine.

I know this may seem like a silly thing to do but, I think Epic may want to look into it because we are using it for dynamic set pieces and I would have thought this would be something not all that rare. It would be interesting to know if anyone at Epic could shed some light on whether or not Matinee’s replacement, Sequencer will have the ability to create paths which can then be assigned to actors at run time rather than the actor having to exist already in the world.

Possibly a temporary solution is to set up a BP with a SceneNode as the root and to simply animate that, attaching your seperate BP or actor as in Attaching Blueprint Actor to an Actor - Changes Vector based behavior? - Blueprint - Epic Developer Community Forums

Yeh, I have simply been placing the actor which will spawn in during runtime into the level so that I can see how the rotation and movement would look. Then I delete it and leave just the matinee.