I captured 360 image by the Ansel plugin and found a strange sphere

I watched the link below.


The engine version is 4.16.
I captured 360 images with the Ansel plugin, but the strange sphere appeared.
I did not have it when I first captured it. What is it? Why?

Find answer by myself…
I left the camera to shoot, I deleted the 1P character, and the sphere disappeared.
There was only capsule component in 1P character … It is strange.