Unreal Engine Issues
Unreal Engine Issues
Lightmass crash after finished building and hitting save
UE - Foundation - Core - Mar 19, 2015User is reporting that the editor will crash after lightmass has finished building and they click to save the project. ...
Crash when compiling Camera Component BP with PostProcessSettings visible
UE - Gameplay - Nov 28, 2017When compiling a blueprint derived from a Camera Component with PostProcessSettings showing in the details panel the Editor crashes. This does not occur in 4.17.2 (3658906) so in addition to a crash ...
Attached Project Crashes When Attempting to Open Blueprint
UE - Gameplay - Blueprint - Nov 11, 2015The project in question: [Link Removed] The user is experiencing an issue where they've fixed compile errors on their NPC blueprint, and now are unable to open it without experiencing a crash. Righ ...
Editing InlineEditConditionToggle variable value causes editor to crash
Tools - Oct 7, 2016Editing property with InlineEditConditionToggle meta specifier causes the editor to crash. Workaround: Calling Super::PostEditChangeProperty after property changing code prevents crash from occurri ...
Editor Crashes When Reopened Project's Level that Contains Vertex Painted Asset is Opened
Tools - Apr 17, 2018Editor crashes when asset is imported in as a skeletal mesh, brought into a level, vertex painted using the paint tab under modes, all assets are saved, project is reopened, then level is reopened. ...
Attached Project Crashes When Compiling Character Blueprint
OLD - Anim - Feb 10, 2016The user's project is crashing during compilation of one of their character blueprints. We have not been able to reproduce this issue in a clean project, as the repro steps are unknown outside of t ...
Editor crash when opening Project Settings on Linux
UE - Platform - Linux - Mar 29, 2017When the Project Settings is opened on Linux, a call is made to run an iOS-related C# program (execute iPhonePackager certificates). This call causes the editor to crash. Unable to find mention of ...
Crash When Attempting To Change LOD1 Cloth Assigned
UE - Simulation - Physics - Character - Apr 12, 2017At times when trying to assign APEX cloth to LOD1 material the engine will crash. I got a 100% repro rate following the steps listed above. I have found some inconsistent errors when trying to rep ...
[Interchange] Crash on asset re-import
UE - Editor - Content Pipeline - Import and Export - Feb 7, 2025We've started seeing a crash in editor when re-importing one of our assets. <pre class="ql-syntax">Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 783] Array index out of ...
Crash when updating phsyics simulated box extent during runtime
UE - Simulation - Physics - May 12, 2017If a Box Collision component is set to simulate physics, calling "Set Box Extent" causes the editor to crash. Workaround: Setting Collision Enabled for the box component to "Physics Only" or "Query ...