Object change its shape in render view

Hi there I’m struggling with a big problem for me in blender

So basically the shapes of every floor looks different than the same object’s in render view.

Material preview view and same scene only render view

in render view there’s a space in floor:(

Idk how to fix this I’m using cycles - experimental but I can’t change it 'cause the lights won’t work

PLS HELP ME

I am not a cycles expert, but to me it looks like it could be a problem with the normals. Can you try enabling the Face Orientation overlay and seeing if the relevant parts of your model are red?
image

Welcome :tada:
…also ther seems some objects hidden in viewport… but not in render… so they might just overlay the other object… ? So that’s wht there is a difference…??

Are you using “displacement” in the material node setup?
If so it could be displacing the geometry.

Everything is blue

I just unhide everything but the problem doesn’t solve.
Every hidden element was just lights or bolean objects

No I deleted displacement nodes and the problem still existing

yep that is solution thank you very much