Guys I'm on latest nvidia driver, switch to auto wait 20 seconds then back to ultra. Fixed the downgraded look of bf1. It does work.

Additionally, These steps can be taken to force the workaround

    1- Open battlefield 1 in My Documents
    2- Open Settings folder
    3- Delete everything, EXCEPT PROFSAVE and PROSAVE_backup, these files is your campaign gameplay and has nothing to do.
    4- Enter the game
    5- set the quality to ultra, or whatever you had before

Additionally, Changing the settings to Auto prior to joining a server from the main menu, And then Joining a server with the settings on Auto and then changing to Ultra upon joining also can force the workaround.