Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_DetailCustomizations!FBrushDetails::OnClassPicked() [brushdetails.cpp:306]
Tools - Nov 10, 2017This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context296 // make sure the brushes are re ...
Rebuild and Clean options in Visual Studio fails compile
UE - Foundation - Build - Farm - Oct 20, 2016Attempting to use Rebuild / Clean fails to compile. VS output shown in callstack. ...
CRASH: OS X frequently freezes when working with blueprints
UE - Platform - Apple - Dec 2, 2014User complains of frequent crashes when using blueprints and has provided repro steps for one incident that tends to cause a crash. While we are not able to reproduce the issue here, the customer ha ...
[CrashReport] UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [asseteditormanager.cpp:293]
Tools - Jan 5, 2018Comment from user:In UE4 standard Mannequin, swapped between skeleton tab and animation tab (after having deleted a single animation) - and it crashed. ...
StartCameraFade() breaks on mobile projects after editor is closed/reopened
UE - Platform - Mobile - Oct 6, 2015If a project that is set to Mobile/Tablet and Scalable 3D or 2D uses StartCameraFade() to produce a fade in effect, the effect will not play in PIE if the editor is closed/reopened. ...
[CrashReport] UE4Editor_Engine!UBlendSpaceBase::UpdatePreviewBasePose() [blendspacebase.cpp:1220]
OLD - Anim - May 11, 2017This crash has been logged due to high frequency among our users. I have tested in 4.15.2 based on the user comments below, but have been unable to reproduce this issue. In my attempts the Blendspa ...
Memory Leak When Raytracing Enabled with Specific Rendering Settings
UE - Graphics Features - Ray Tracing - Apr 8, 2025When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...
Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior
UE - Simulation - Physics - Nov 21, 2024Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior. In the repro project provided (see addl in ...
Async Physics incorrectly interpolates when multiple physics ticks pass
UE - Simulation - Core - May 28, 2024If a user set the transform of a Body from the game thread and physics is running multiple async ticks perf game tick, the transforms might be being calculated incorrectly. ...
Ensure in IWCE copying a component and its child at the same time
UE - Gameplay - Components - Jul 31, 2017REGRESSION: Yes, does not occur in 4.16.3 Ensure occurs in in-world component editing, when the user selects and copies a component and its child at the same time. This doesn't occur if these comp ...