Unreal Engine Issues
Unreal Engine Issues
When moving actors to the current level, their label is reset and displayed incorrectly on the Scene Outliner until the next time it is refreshed
UE - Editor - Workflow Systems - Jul 14, 2025This is a regression, it worked correctly up to UE 5.4, but repros on UE 5.5 and 5.6. Also, this seems related to [Link Removed], which was fixed by CL 40649716/40649749 and integrated into UE 5.6, ...
Actors in sublevels do not replicate to Clients after Seamless ServerTravel
UE - Networking - Dec 9, 2015Actors in sublevels do not replicate to Clients after Seamless ServerTravel. The user reporting this noted that "[...] UNetDriver::IsLevelInitializedForActor() keeps returning false even when the ac ...
Editor Crashes When Updating Captures on Sphere Reflection Captures
UE - Graphics Features - Feb 20, 2017Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out of bounds: -1 from an array of size 11 Source Context: 200 CubemapArray.Updat ...
Crash diffing an AnimBP with a node deleted from a State Machine Transition
UE - Gameplay - Blueprint - Mar 10, 2017Error message: Assertion failed: false [Link Removed] [Line: 1123] Looking for node K2Node_AnimGetter_327 but it cannot be found in provided panels Source Context: 1108 } 1109 111 ...
[CrashReport] UE4Editor_Engine!FBaseBlendedCurve<FAnimStackAllocator>::InitFrom() [animcurvetypes.h:364]
OLD - Anim - Jul 5, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Source Context: 349 } 350 351 ...
[CrashReport] UE4Editor_Slate!FSlateApplication::GetNavigationDirectionFromAnalog() [slateapplication.cpp:2001]
UE - Editor - UI Systems - Slate - Oct 27, 2017This is a trending crash coming out of the 4.18 release. A number of the affected projects appear related to VR. User DescriptionsI was trying to use the SteamVR preview for Windows MR headsetI j ...
Player/Visibility Collision Doesn't Work with InstancedStaticMesh
UE - Simulation - Physics - Jul 24, 2018Player/Visibility Collision doesn't work with InstancedStaticMesh or HierarchiInstancedStaticMesh components. Found in 4.19 CL# 4033788, 4.20 CL# 4212847, 4.21 CL# 4221482 ...
Cube Render Target "Size X" Is Being Set as Y
UE - Graphics Features - Jul 30, 2018The cube render target "Size X" is being set as Y. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4234136 ...
Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled
UE - Niagara - Dec 27, 2018Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...
SpiralBlur-SceneTexture Does Not Compile If Raytracing Enabled
UE - Graphics Features - Lumen - Jul 22, 2019The material function SpiralBlur-SceneTexture, does not compile in DX12 mode. Found in 4.22 CL# 7053642, 4.23 CL# 7321677, 4.24 CL #7474192 ...