Unreal Engine Issues
Unreal Engine Issues
Mouse cursor position is locked to center of screen when bShowMouseCursor is false
Tools - Nov 16, 2016When you set bShowMouseCursor to false in a Standalone or packaged game while Default Viewport Mouse Lock Mode is set to either Always Lock or Lock on Capture, the cursor will become locked in place ...
[CrashReport] UE4Editor_SequenceRecorder!FAnimationRecorder::UpdateRecord() [animationrecorder.cpp:464]
UE - Anim - Sequencer - Sep 14, 2017This is a common and longstanding crash that has affected more than 300 users since 4.12. The callstack is closely similar to [Link Removed], although with different error messages. User Descripti ...
[CrashReport] UE4Editor_UnrealEd!TArray<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0>,FDefaultAllocator>::AddUniqueImpl<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0> const & __ptr64>() [array.h:1805]
Tools - Sep 20, 2017This is a longstanding crash that occurs with low frequency per release, but has affected 400 users since the 4.11 release. Unfortunately among all of them, only one has provided any description. ...
Sequencer animation stutter when using Run Dedicated Server causes character to drift
UE - Anim - Sequencer - Oct 16, 2017Sequencer animation stutter when using Run Dedicated Server causes character to drift. This doesn't happen when "Run Dedicated Server" is disabled. Licensee Description: We are having an issue wit ...
[CrashReport] Crash in PHAT on LeftMouse click while moving ragdoll asset during Simulate
UE - Simulation - Physics - Oct 25, 2017Crash occurs in the updated Physics Asset Editor if you LeftClick while moving a ragdolled asset during Simulation. This is a regression from 4.17.2 User Descriptionsin the new physics asset edit ...
Comment Box Edges/Corners Do Not Precisely Follow Cursor when Resizing
UE - Editor - UI Systems - Slate - Oct 10, 2017When resizing comment boxes, the edges/corners do not follow the cursor precisely, especially when the cursor is moved around quickly. On Windows, the cursor will either get ahead of the box or ins ...
CLion cannot update CMake for an Unreal Studio project created on a drive other than the one the Engine is installed on
UE - Foundation - Cpp Tools - Apr 22, 2019If an Unreal Studio project is created on a different drive from where the Engine is installed, CLion is unable to successfully update CMake. The location for where Engine files can be found appears ...
[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - Nvidia
UE - Graphics Features - May 14, 2019Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house Nvidia information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Con ...
Lighting channels not working as expected when enabling Ray Tracing Shadow
UE - Graphics Features - Lumen - Oct 13, 2020Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...
Multiple setter functions in UMaterialEditingLibrary always return false even when the parameter is correctly set on the MaterialInstance.
UE - Rendering Architecture - Materials - May 30, 2025In Unreal Engine, materials can expose parameters that can then be modified via instances (MaterialInstanceConstant). The UMaterialEditingLibrary provides several functions to modify these parameter ...