there is a very annoying bug in Unreal Engine 4.4.3. When I try to export a movie, the sphere reflection capture actor is always visible in the movie althought I switched the option “Actor hidden in game” on ! You can see it on the attached picture. At the moment I am not able to play out my movie. Please fix this bug in the next update.
UPDATE: I figured out, that this sphere object in the playout movie is NOT the sphere reflection capture actor. I dont know what it is…Really strange. I checked my scene…But there is no object which can cause this problem. At the moment I do not know what to do…
I ran into a similar issue but noticed that when I moved the PlayerStart node farther away and out of camera view the sphere would go away too. Not sure if that’s what was in your scene, but just another possible solution.