# Destructible Meshes Stop Simulating Physics

**URL:** <https://forums.unrealengine.com/t/destructible-meshes-stop-simulating-physics/423694>\
**Category:** World Creation\
**Tags:** UE4-19, unreal-engine, Destructible-Mesh, Physics, editor, UE4, question\
**Created:** [April 27, 2018, 12:05am UTC](https://forums.unrealengine.com/t/destructible-meshes-stop-simulating-physics/423694 "2018-04-27T00:05:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![anonymous\_user\_5486ca911](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_5486ca911](https://forums.unrealengine.com/u/anonymous_user_5486ca911)\
**Post date:** [April 27, 2018, 12:05am UTC](https://forums.unrealengine.com/t/destructible-meshes-stop-simulating-physics/423694/1 "2018-04-27T00:05:04Z")

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Ever since updating to 4.19, I cannot make even the simplest Destructible Meshes continue to simulate their physics after breaking apart. The moment they “crack,” the object freezes in place and refuses any further inputs. I’ve tried old meshes, and even created new (very simple) ones using this tutorial:

[https://docs.unrealengine.com/en-us/Videos/PLZlv\_N0\_O1gYeJX3xX44yzOb7\_kTS7FPM/-gGiEmYj4oE](https://docs.unrealengine.com/en-us/Videos/PLZlv_N0_O1gYeJX3xX44yzOb7_kTS7FPM/-gGiEmYj4oE)

I cannot get to happen what happens in that tutorial using the exact same steps.

Furthermore, the Fracture Mesh button within the Destructible Mesh editor keeps adding data to the Skeletal Mesh table, despite changing it or clearing it out. Because of this, I’m not sure if any editing I make to that data is really being saved when I hit “Save.”

Finally, the Explode Amount slider rarely works. There are some actions I can take that will update the preview window with whatever my current Explode Amount is set to, but moving the slider around does not update the actual explode amount under any circumstances. Also, hitting the Fracture Mesh button will preview my Mesh as if the Explode Amount was 0, even if the slider has a value.

This was all working in 4.18.

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**Author:** ![Jeff\_A](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Jeff\_A](https://forums.unrealengine.com/u/Jeff_A)\
**Post date:** [April 27, 2018, 7:26pm UTC](https://forums.unrealengine.com/t/destructible-meshes-stop-simulating-physics/423694/2 "2018-04-27T19:26:43Z")

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Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

[https://epicsupport.force.com/unrealengine/s/](https://epicsupport.force.com/unrealengine/s/)

Thanks

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**Author:** ![dyanikoglu](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/dyanikoglu/32/1008648_2.png) [@dyanikoglu](https://forums.unrealengine.com/u/dyanikoglu)\
**Post date:** [June 23, 2018, 7:28am UTC](https://forums.unrealengine.com/t/destructible-meshes-stop-simulating-physics/423694/3 "2018-06-23T07:28:00Z")

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I can confirm the same issue.

Explosion slider does not work, also destrutible objects are freezing just after they crack.

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**Author:** ![james.littlejohn](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@james.littlejohn](https://forums.unrealengine.com/u/james.littlejohn)\
**Post date:** [August 15, 2018, 10:19pm UTC](https://forums.unrealengine.com/t/destructible-meshes-stop-simulating-physics/423694/4 "2018-08-15T22:19:42Z")

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I ran into the same issue. Looks like it was caused by [Unreal Engine Issues and Bug Tracker (UE-58813)](https://issues.unrealengine.com/issue/UE-58813)