# Bad collision between falling pawn + moving platform? **URL:** \ **Category:** World Creation\ **Tags:** falling, unreal-engine, Collision, question\ **Created:** [October 20, 2014, 12:43am UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674 "2014-10-20T00:43:09Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![skeleton60](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@skeleton60](https://forums.unrealengine.com/u/skeleton60)\ **Post date:** [October 20, 2014, 12:43am UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/1 "2014-10-20T00:43:09Z")
Here is video showing my bug: [https://www](https://www)…com/watch?v=5YjT4-Qa2L0&feature=youtu.be Why my pawn go through platform when he is in falling state? Pawn is a papercharacter ---
**Author:** ![anonymous\_user\_33800a51](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_33800a51](https://forums.unrealengine.com/u/anonymous_user_33800a51)\ **Post date:** [October 22, 2014, 11:02pm UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/2 "2014-10-22T23:02:47Z")
Hey skeleton60, Can you provide some details about your character? Some screenshots of collision settings for all components of both character and papercharacter would help us investigate issue. If you feel comfortable creating a test project in which this issue occurs for us, you can upload it to Dropbox and show us a link so we can take a look. Thanks! ---
**Author:** ![skeleton60](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@skeleton60](https://forums.unrealengine.com/u/skeleton60)\ **Post date:** [October 23, 2014, 1:26am UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/3 "2014-10-23T01:26:38Z")
its easy to reproduce, even with default 2d side scroller project bug occur here is an example project with bug occuring when u try to do same thing in my video https://.co.nz/#!EdEwyKyT!hEcTeeSaffml6\_0MvffLsU-hnL3lXBHl5gD8rVfjTxc ---
**Author:** ![skeleton60](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@skeleton60](https://forums.unrealengine.com/u/skeleton60)\ **Post date:** [October 23, 2014, 1:27am UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/4 "2014-10-23T01:27:10Z")
I just took a ledge, replaced it by a composited blueprint, and add a rotation on pitch in event tick ---
**Author:** ![skeleton60](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@skeleton60](https://forums.unrealengine.com/u/skeleton60)\ **Post date:** [October 23, 2014, 1:38am UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/5 "2014-10-23T01:38:31Z")
Here is video showing bug with project i give you in : [![]( " - YouTube") ](https://www.youtube.com/watch?v=dtk8l0HRuR8) project download: https://.co.nz/#!EdEwyKyT!hEcTeeSaffml6\_0MvffLsU-hnL3lXBHl5gD8rVfjTxc ---
**Author:** ![anonymous\_user\_33800a51](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_33800a51](https://forums.unrealengine.com/u/anonymous_user_33800a51)\ **Post date:** [October 23, 2014, 8:26pm UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/6 "2014-10-23T20:26:57Z")
Hey skeleton60, I was able to reproduce this in project you provided. It seems to be related to known issues with physics and scaled actors. I have entered a bug report in our system for developers to look over (UE-4558) and I will let you know when I see an update. Thanks for report! For now, to avoid this kind of thing you should use sprites that have not been scaled. If you need to scale a sprite, try turning its collision off and giving it a box component with collision after you have it at size you want. Hope that helps! ---
**Author:** ![skeleton60](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@skeleton60](https://forums.unrealengine.com/u/skeleton60)\ **Post date:** [October 24, 2014, 12:58am UTC](https://forums.unrealengine.com/t/bad-collision-between-falling-pawn-moving-platform/296674/7 "2014-10-24T00:58:17Z")
Hi, i tried with a non scaled “long bar” sprite too (too be near equal scaled ledge) and bug occur too in this case only when pawn start falling he still goes through rotating platform