# Rolling ball jumps at flat surface

**URL:** <https://forums.unrealengine.com/t/rolling-ball-jumps-at-flat-surface/458685>\
**Category:** Asset Creation\
**Tags:** ball, unreal-engine, question\
**Created:** [November 21, 2019, 8:04pm UTC](https://forums.unrealengine.com/t/rolling-ball-jumps-at-flat-surface/458685 "2019-11-21T20:04:17Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![anonymous\_user\_493c1bc1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_493c1bc1](https://forums.unrealengine.com/u/anonymous_user_493c1bc1)\
**Post date:** [November 21, 2019, 8:04pm UTC](https://forums.unrealengine.com/t/rolling-ball-jumps-at-flat-surface/458685/1 "2019-11-21T20:04:17Z")

</div>

Hi everyone, i had issue with my game project. The problem is described in detail here: [Rolling ball jumps on flat surface - World Creation - Epic Developer Community Forums](https://forums.unrealengine.com/development-discussion/content-creation/50364-rolling-ball-jumps-on-flat-surface)  
And my video of issue: [rolling ball problem - YouTube](https://www.youtube.com/watch?v=ZGAvtE3FSQw)  
I’ve already tried everything I could, but i still have this issue. I tried 4.19 version and lower contact offsets, but it still continues to happen sometimes. I just tired to trying find a fix of this issue…  
There is my contact offsets:

![292804-аннотация-2019-11-21-225528.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/a/3/ea33a290a37357a871562a6c2a3337b237635243.png)

Any ideas how to prevent those jumps? I noticed that it depends on the speed of ball in place of junction of two meshes.