I'm trying to investigate why media_url field for VIDEO/STORY via stories or directly mediaId endpoints is missing.

I checked copyright_check_information field and I got:

status: {
 status: "complete",
 matches_found: false
}

Here is debug info:

 x-fb-trace-id: FpwsuM2qkEh
x-fb-rev: 1016233710
x-fb-debug: wDkrBFCJczuX6S04yhiZr6W6QB5EB6neGhS6gkoiHp5M0WxRrJw7D2bLXIVFVSyB4+nEjx0RbIAhgWTvxI8PlQ==

Looks like this field sometimes is missing because of copyright violation which is ok but sometimes without any reason.