Issue with landscape collision

I already did a post about this showing a video of the problem but no replies so I’ll ask again.
I’m doing a vr game, I have the character set up and I’m now doing the map with landscape. However, my character not always walks on the landscape surface, sometimes it walks below it, sometimes above it. Landscape collision is set as block all and mip is at 0. What could it be?

Maybe this will help. I couldnt find much tutorials about your specific issue.

That’s not the issue I’m having, it’s like if the player walks on a different level then the landscape. I also added a material to the landscape with grass and sometimes, the grass will be below or above the landscape level