I recently encountered this bug in a Fortnite match and it fixed itself by me restarting after I finished the game with the bug.
After landing, everything around me except a small area where my character actually stands turned really blue and weird.
It was very distracting because I could not see any enemies further than right in front of me.
I do have some screenshots.
I also had problems after the game, when I arrived back in the Fortnite menu screen, it was also all blue in the background, only after restarting this was all fixed.