Huge parasites by x264

[Professor_Sajjad]

When I try to encode some of my videos by x264, they are going to be so parasitely like this below frame picture:

Hybrid version: 2018.04.08.1 Windows 10, 64bit 1709.
there is no error message
I just put video in and specific the output path and set audio as auto add first and don't change any other thing
and debug and report files attached
this problem just happen for some of videos not all of them
what is this? how this happening?
thanks every one