Description

A hard crash can happen when applying auto convex collision to a complex mesh that is below a certain build scale or screen size. The meshes that cause this have higher poly counts and increasing the size of the mesh can prevent the crash.

Confirmed crash in:
4.10 releases CL-2791327
4.11 CL-2804793
4.12 Dev-Framework - CL-2803635

Steps to Reproduce

1. Open UE4
2. Import Attached Asset or use SM_Statue from Starter Content
3. Open the Static Mesh
4. Adjust it's build size so that the mesh is barely visible. (The attached mesh will import with this scale. If using the SM_Statue, set the build scale to 0.001 for XYZ in the Build Settings and apply
5. In the Auto Convex Collision hit Apply for the default settings

Results: The editor will hard crash with no crash reporter window.

Expected: The editor will not crash.

Callstack

No call stack created with this crash

Have Comments or More Details?

Head over to the existing Questions & Answers thread and let us know what's up.

0
Login to Vote

Fixed
ComponentUE - Gameplay
Affects Versions4.104.114.12
Target Fix4.11
Fix Commit2843666
Main Commit2880055
Release Commit2843666
CreatedDec 16, 2015
ResolvedJan 26, 2016
UpdatedApr 27, 2018
View Jira Issue