# Moving Platform causes character to fly up when sliding

**URL:** <https://forums.unrealengine.com/t/moving-platform-causes-character-to-fly-up-when-sliding/746593>\
**Category:** Programming & Scripting\
**Tags:** timeline, unreal-engine, character-collision, Physics, Blueprint\
**Created:** [January 10, 2023, 9:39pm UTC](https://forums.unrealengine.com/t/moving-platform-causes-character-to-fly-up-when-sliding/746593 "2023-01-10T21:39:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sweeetjd](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/sweeetjd/32/782492_2.png) [@sweeetjd](https://forums.unrealengine.com/u/sweeetjd)\
**Post date:** [January 10, 2023, 9:39pm UTC](https://forums.unrealengine.com/t/moving-platform-causes-character-to-fly-up-when-sliding/746593/1 "2023-01-10T21:39:20Z")

</div>

I have a blueprint that looks like an oil barrel floating in water. It is used as a platform and can use a spline to move itself as an extra challenge. It applies a subtle rotation animation to give the appearance of bobbing up and down in the water.

When the player character performs a slide action on this object AND he comes into contact with another barrel blueprint, there is a chance he may be launched into the air at least by z=500, probably more. I’m not sure what is causing this.

The Barrel:

> **[Buoyant Barrel Example posted by sweeetjd | blueprintUE | PasteBin For Unreal...](https://blueprintue.com/blueprint/3twiu_sy/)**
>
> No description provided

Part of the Character that controls slides:

> **[Start Slide posted by sweeetjd | blueprintUE | PasteBin For Unreal Engine](https://blueprintue.com/blueprint/gld70xb_/)**
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> No description provided