I have a white box in Fortnite, how to solve it?

Yesterday I downloaded Fortnite again and whenever I left click e.g. When shooting, a white square will appear in the center left of the screen. That sucks, please help.

This is the latency light that you can turn off in the graphics settings has something with latency in its name

yea i have recently started having this hope it fixes it

thank you it is gone for me now thanx to haleyalto47

please help this is so annoying

thank you it worked