Have you verified you are up to date with phone/OS updates? We have seen that this can be caused by having old drivers that haven't been updated.
This thread was added on November 21, 2023, with posts from CatBlips_Epic.
It's just a bug/glitch. Open fortnite, Then open game slidebar, Then select monster mode, and then click display settings, Then click high quality, Then restart. It is fixed now, thank you for trying to help me
Happy to hear it is fixed! Thanks for letting me know.