HALO4 MAP BUG

I CANT SEE THE GROND
If I try to step on the invisible ground
I die like falling off a cliff
However, the car does not fall and moves normally.
It looks like it’s flying, but it still moves as if there is an invisible ground.
I can move without falling below the invisible ground while riding on the car
But the moment I get out of the car, I fall right away
I cannot proceed with the game because of this phenomenon.
I am currently working on a chapter called The Reclaimer. I am moving in an elephant, but the road suddenly disappears in the middle.
My nickname is PrincessCap5364
I need help, please I hope you can give me an answer to this problem.

This is known issue OP, there are steps here you can take to help resolve the problem
https://support.halowaypoint.com/hc/en-us/articles/360052516151