Hi JohnRoger,
This appears to be expected as your camera is a spawnable actor. Meaning it can’t reference level actors. Spawnables allow you to drop the sequence into any level and have the actor “spawn in” independent of the level itself.
So, you can do one of two things.
- Add a track for the object you’d like to track and convert it to spawnable as well (rebuilding the level and lighting while you’re at it), then point it at that spawnable actor.
- Second, you can add a cine camera to the level itself, so that they are both level actors.
I have added UE-32231 to add more clarity to the error message. If it turns out that we want to support this functionality, I will either convert this bug or enter a new one.