Nexus 5X camera: ghosting or camera fault?

First, I'm sorry for my english.

I have just received my new Nexus 5X.
I recorded video for test.
There are some strange point(like flare or ghosting).
But I think that point shape isn't normal.

Please anyone record video at same environment and compare.
Is my phone's camera normal?

I can't embed my youtube video. (new member limit in xda)
Please search "Nexus 5X camera at night (ghosting or camera fault?)" in youtube. (need quotation marks)