Phantom sphere can't be deleted

Hey there I have this phantom sphere that doesn’t appear in the viewport (even in wireframe mode) and i can’t find it in the World Outliner, yet when I play the Standalone Player (to render 360 images) the sphere appears.

Here’s looking through a camera…

Here’s a wireframe view…
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And here’s when viewing through the Standalone Player…

Am I missing something?

Thanks in advance.

Ah whoops looks like I had deleted my Player Start actor, so now I’ve moved it out of view and all’s much better.

Ah whoops looks like I had deleted my Player Start actor, so now I’ve moved it out of view and all’s much better.