# Loosing Collision **URL:** \ **Category:** World Creation\ **Tags:** physx, unreal-engine, Collision, bug-report, question\ **Created:** [May 11, 2017, 8:59pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376 "2017-05-11T20:59:27Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Jonas\_Molgaard](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jonas\_Molgaard](https://forums.unrealengine.com/u/Jonas_Molgaard)\ **Post date:** [May 11, 2017, 8:59pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/1 "2017-05-11T20:59:27Z")
If you attach a StaticMeshComponent, to a SceneComponent, the rest of the chain of attached StaticMeshComponents loose their collision. I’ve reproduced this in a VR context because it was where i found it. Wasn’t able to make a similar non-VR setup to reproduce it, but seen this issue just to a worse extend in 4.15 too. So some of it are fixed, but clearly not all of it 😉 I’ve setup a demo of the bug in a project for download here: [Dropbox - File Deleted](https://www.dropbox.com/s/u0wfb2vm1x18o8b/4.16p3%20MissingCollisionBug.zip?dl=0) And added a short video of the bug here: [- YouTube](https://www.youtube.com/watch?v=ity6yLhGxi4) ---
**Author:** ![Jonas\_Molgaard](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jonas\_Molgaard](https://forums.unrealengine.com/u/Jonas_Molgaard)\ **Post date:** [May 11, 2017, 9:11pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/2 "2017-05-11T21:11:53Z")
Found something related to it btw: [https://github.com/EpicGames/UnrealEngine/commit/0305106c0c041789e5b73aec5f43465737d7628d](https://github.com/EpicGames/UnrealEngine/commit/0305106c0c041789e5b73aec5f43465737d7628d) ---
**Author:** ![Jonas\_Molgaard](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jonas\_Molgaard](https://forums.unrealengine.com/u/Jonas_Molgaard)\ **Post date:** [May 11, 2017, 9:22pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/3 "2017-05-11T21:22:11Z")
And link to original bug report that fixed something, but not all of it: [Unreal Engine Issues and Bug Tracker (UE-32531)](https://issues.unrealengine.com/issue/UE-32531) ---
**Author:** ![Jonas\_Molgaard](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jonas\_Molgaard](https://forums.unrealengine.com/u/Jonas_Molgaard)\ **Post date:** [May 15, 2017, 6:01pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/4 "2017-05-15T18:01:31Z")
Let me know if there’s anything else i can provide of information to clarify this issue. ---
**Author:** ![anonymous\_user\_e729f54e](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e729f54e](https://forums.unrealengine.com/u/anonymous_user_e729f54e)\ **Post date:** [May 15, 2017, 7:44pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/5 "2017-05-15T19:44:15Z")
After doing some digging it appears that this is a known issue. I have provided a link below to the public tracker. Please feel free to use the link provided for future updates. Link: [Unreal Engine Issues and Bug Tracker (UE-30895)](https://issues.unrealengine.com/issue/UE-30895) Make it a great day ---
**Author:** ![Jonas\_Molgaard](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jonas\_Molgaard](https://forums.unrealengine.com/u/Jonas_Molgaard)\ **Post date:** [May 15, 2017, 8:41pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/6 "2017-05-15T20:41:02Z")
Hi @, thanks a lot for getting back to me. I checked that issue, and it’s marked for won’t fix, but still has target 4.16 set. What excacly does that mean? Did you also check [UE-32531](https://issues.unrealengine.com/issue/UE-32531)? That seems very similar to what i experience, except it’s for actors, where my issue is for components. Hope you can check up on this issue will be fixed. ---
**Author:** ![anonymous\_user\_e729f54e](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e729f54e](https://forums.unrealengine.com/u/anonymous_user_e729f54e)\ **Post date:** [May 22, 2017, 8:39pm UTC](https://forums.unrealengine.com/t/loosing-collision/393376/7 "2017-05-22T20:39:35Z")
Regarding the reason for UE30895 being marked as won’t fix, it appears that it was marked this way do to low priority at the time. I have reached out to the developers for an update.