Why character fall down through landscape?

I have created binoculars with spring arm of camera, but when I activate camera and move camera around in the world then my character falls down through landscape, how I can fix it? Please help me!

I am using ALS Community and default binoculars from there, you can create blueprint of binoculars and create there spring arm with camera and activate it with blend. After moving mouse around my character fall down. I do nothing with positioning of character only camera on binoculars with spring arm.

Please share solution!

check your collision, is it set to use complex collision as simple collision?

Hi, can you tell me which collision of which object?

Above picture landscape collistion and below on picture character mesh collistion:

Can someone create project based on ALS Community C++ plugin and attach camera with spring arm on binoculars mesh object? After pressing right mouse for aiming do camera blend and move around camera staying on landscape which created with world partition.

Please help me, i cannot resolve this issue! Something with bug of engine!

Likely the springarm and/or binoculars has collision and is pushing the character around

Something like that. Binoculars already was no collision.

Something pushing the character around..

Can someone from developers of unreal engine say what happens? How to solve this issue?

You have to check the collison yourself on the components. Likely you want the spring arm and binoculars set too no collision

Already setted, no collision setted…

Hello @Ruslanmin2 ,
Well, I’ve been testing different possible solutions, and a few things came to mind that you could try.

First, go to the Spring Arm and disable Inherit Pitch, Inherit Yaw, and Inherit Roll to rule out the possibility that the camera is inheriting a rotation that’s causing the issue.

Another simple test would be to temporarily disable Do Collision Test on the Spring Arm, just to rule out the camera collision system interfering somehow.

Also, try setting the binocular mesh’s Collision Presets to No Collision and see if the issue still occurs.


If it goes away, you could use a custom collision preset that ignores at least the Camera and Pawn channels, as that would indicate a collision-related problem.

You could also run show collision in the console and check what happens to the character’s capsule when you activate the binoculars. If the capsule is also going through the landscape, then the issue is probably not related to the camera. If the capsule stays on the ground and only the view goes below the map, then it’s more likely a camera or Spring Arm issue.

If none of that works, I have a few questions that might help narrow down the cause:

  1. How are you attaching the binoculars to the character?
  2. You mentioned that you’re using Set View Target with Blend. Could you show that logic?
  3. Could you record a video showing the issue with show collision enabled? Seeing the collisions while the problem occurs would help a lot in identifying which component is being affected.

With that information, it will probably be easier to identify what’s causing the character to end up below the landscape.

Hope it helps!

I am attaching binoculars as usuall with AttachToComponent and socket of right arm.

Inherit Settings not helping to solve issue. Do Collistion Test was already disabled..

Landscape is WorldPartition with height map.

To Test this issue just take some height map from internet and try again.

For some reason it is also rotates binoculars as issue in World Partition World Level, but not in usual basic level !!