Unreal Engine Issues
Unreal Engine Issues
Crash when Changing LOD Group on SpeedTree Assets
UE - LD & Modeling - Modeling Tools - Mesh Editing - Nov 22, 2016A crash occurs when changing/setting the LOD Group of a SpeedTree asset within the Static Mesh editor. Regression? Yes, this crash does not occur in the 4.13.2 binary release. ...
Crashes upon project start up
Tools - Feb 10, 2015Crash Report: [Link Removed] After downloading latest revision, user is no longer able to open project due to constant crash. ...
SIGSEGV: invalid attempt to access memory at address 0x3
UE - Platform - Apple - Jan 30, 2015Crash Report: [Link Removed] ...
[CrashReport] UE4Editor-D3D12RHI!FD3D12Viewport::PresentChecked(int) [D3D12Viewport.cpp:492]
UE - Rendering Architecture - RHI - Mar 29, 2019Callstack is garbage past D3D12 calls but logging for visibility. Generated from CrashReporter ...
Bug in CurveLinearColor makes colors of Diffraction material white outside curve range, causing rendering artifacts
UE - Texture - May 14, 2025There seems to be a regression with linear textures (commonly for multi-channel masked textures) in UE5.4. Setting the "Encoding Override" (under Texture > Advanced > Source Color Settings) to "Line ...
Source control commandlets do not consistently check provider status for read only or checkout and instead rely on read only state of files
UE - Editor - Workflow Systems - Jul 7, 2022Collections reset when the engine upgrades project
UE - Editor - Content Pipeline - Content Browser - Jul 8, 2015When you upgrade your project to a new version of the engine, your Collections are deleted from the Collection setting. ...
EQS Generators named "NewBlueprint" cause errors and crash
UE - AI - Feb 11, 2015Naming an EnvQueryGenerator_BlueprintBase derived BP "NewBlueprint" and deleting it causes new custom generators to not appear in the EQS. This can also lead to a crash when searching for the new ge ...
External Reference Spam when converting projects to 4.9
UE - Foundation - Core - Cooker - Sep 1, 2015Map Check message log gets spammed with External Reference warnings when a project is converted to 4.9 from a previous engine version. These warnings don't seem to actually do anything to projects o ...
When using Lighting Scenario, loading order will affect how it's applied to the instances
UE - World Creation - Worldbuilding Tools - Foliage - Mar 7, 2019When using Lighting Scenario, loading order will affect how it's applied to the instances, resulting in corruption if content is loaded after the lighting scenario ...