# Undesired collision in the middle of nowhere

**URL:** <https://forums.unrealengine.com/t/undesired-collision-in-the-middle-of-nowhere/448621>\
**Category:** World Creation\
**Tags:** landscape-painting, invisible, unreal-engine, Physics, Collision, Landscape, question\
**Created:** [May 8, 2019, 2:17pm UTC](https://forums.unrealengine.com/t/undesired-collision-in-the-middle-of-nowhere/448621 "2019-05-08T14:17:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ta1b](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ta1b/32/636302_2.png) [@ta1b](https://forums.unrealengine.com/u/ta1b)\
**Post date:** [May 8, 2019, 2:17pm UTC](https://forums.unrealengine.com/t/undesired-collision-in-the-middle-of-nowhere/448621/1 "2019-05-08T14:17:06Z")

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Hey guys,  
I’m facing some serious issues in collision which is getting some kind of invisible wall in the middle of nowhere of my landscape. I’ve made a small video to show you the issue:

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/a/7/9a7e87c9da1152532421f1ae762ebdc66d12ae4c.jpeg "Collision issues") ](https://www.youtube.com/watch?v=ylCgkpeifzI)

Also, after altering my landscape a bit, my character falls through it at a specific point (always the same area):

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/6/f/26f8c087673cb626239d2ee501c8fce7e6eb6cdd.jpeg "Collision issues 2") ](https://www.youtube.com/watch?v=foxT9EQVzn0)

When editing my foliage, I eventually recognized that the foliage painting tool seems to bounce of at that exact locations in my landscape where I either fall through or bounce against that invisible wall, and since those issues showed up at the same time, I think they might be connected to each other. Unfortunately I can’t recapture my actions to that point.

What I’ve tried:

- removing lightmass importance volumes (I know this should definitely not be a reason but I wanted to make sure nothing can be in my pawn’s way)
- enabled viewport player collision (as you can see in the video) and visibility collision

How can I debug or let’s say at least delimit this? Is there another way to get a grip of this? Wireframe view mode also didn’t show anything.

Thanks a lot in advance.

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**Author:** ![Lardo\_Deepdelver](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Lardo\_Deepdelver](https://forums.unrealengine.com/u/Lardo_Deepdelver)\
**Post date:** [May 8, 2019, 3:31pm UTC](https://forums.unrealengine.com/t/undesired-collision-in-the-middle-of-nowhere/448621/2 "2019-05-08T15:31:46Z")

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You could Bind an event to Actor hit and log the result, you might need to **Simulation Generates Hit Events** on the collisions of your actor

 ![276352-printhitactor.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/b/f/4bf0b8d5261bcfed7978f139cb118ca36f52fb26.png)

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**Author:** ![ta1b](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ta1b/32/636302_2.png) [@ta1b](https://forums.unrealengine.com/u/ta1b)\
**Post date:** [May 8, 2019, 3:54pm UTC](https://forums.unrealengine.com/t/undesired-collision-in-the-middle-of-nowhere/448621/3 "2019-05-08T15:54:23Z")

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Oh, thanks so much Lardo Deepdelver.  
Turned out that the hit event was my landscape, thus I found out I had **accidentally turned on the “Bake Material Position Offset Into Collision” flag** for my landscape object which apparently caused all this trouble.  
Problem solved!