I’m new with UE4 and i have this problem:
I’ve tried to build everything and even packed it up.
You may want to try increasing the “bounds scale” on your objects to keep them in view better.
You can learn a lot about UE4’s culling methods here: http://timhobsonue4.snappages.com/culling-visibilityculling.htm Maybe something there will help you. Personally I’ve never run into that problem.
Hello Velu12
That is occlusion culling like “redbox” said. You can close it but i do not recommend for performance. Just disable it by clicking the checkbox.
You can also check this link to understand how it works and how to avoid and adjust. Goodluck…
Thanks everyone for help, I’ve learned a lot. But still can’t get rid of it. Only KemalGunel89s method worked but it is not good for performance. If there is some way to render meshes in x distance from player, it should work. But I didn’t find anything like that. increasing bounds scale for each mesh barley helps and provide FPS drops. Anyway thanks for help, I’ll try to handle it somehow.
Maybe you have too many individual meshes and it’s overloading the culling methods? If so try combining some of the meshes. Ue4 has tools to combine meshes too. Just a shot in the dark.
Can you try to disabling or lowering amount of motion blur on camera? Are you playing in editor or built.exe on desktop? If possible can your try too build it for desktop and test it again?
That is what it’s looks like.
w/o blur it looks same.
Ok lets try something different. Save and backup your scene first for in case of any accident. And then open a notpad file then go to your level > select every object with CRTL+A > copy with CTRL+C > open notepad file and paste them with CTRL+V and save it. Now you are able to setup your scene in another level by reversing this process( copy from note pad to editor) if you dont change your directory. Now open a blank level > copy everything from the notepad file and paste in new level. Just wait i can take some time depends on level. If it’s done without crashing or error check everything on the level for be sure. Next this step is a bit confusing if you are doing it for the first time. Select your wall static meshes and press right mouse button there should be an option “MERGE ACTORS” and click on it. And do the same settings as shown below. And click merge actors button. Choose the directory to save it and wait until its done.
Now delete wall on your scene which you merged and bring the merged to your scene. Build lighting. And lets see what will happen. If you confuse to follow steps about merging actors go to this - YouTube
Goodluck…
Merged every wall and it worked 
Thank you very much!
Thanks everyone. I learned a lot!
You are very welcome. Hope your project goes well. Goodluck.
I merged everything and now it’s ok
This is occlusion culling, and it will work in that way when you move camera very fast.
I’m not sure why this is so noticeable for you, but maybe environment is very modular.
Velu12 in this screenshoot
are the mesh overlapping?
Also, to test if the is the occlusion culling you can re-create the same level/rooms with only the Unreal BSP with OC on. Or you can use the same room, but add space between all mesh, just to test.
I think this is a overlapping mesh, cause looks the problem only happen where have a 2+ mesh intersection.
Let us know