Unreal Engine Issues
Unreal Engine Issues
Regression: "Play particle effect" anim notifies are not seen in the editor playing level sequence/matinee when Attached is set to false
UE - Graphics Features - Dec 21, 2017Not Attached particle system is not seen in the viewport of the editor. This particle will be seen normally when PIE. Regression? Yes. This issue is not reproduced in 4.17 version. You can simply ...
Physic Constraint movement is quadratic where previously it was spherical
UE - Simulation - Physics - Apr 6, 2022Physic Constraint movement is quadratic where previously it was spherical. ...
Crash opening ContentExamples with the -d3ddebug commandline
UE - Graphics Features - Dec 9, 2016Crash opening ContentExamples with -d3ddebug ...
PLCrashReporter iOS Bitcode packaging Error
UE - Platform - Mobile - Mar 6, 2019Unable to package a CPP project with Bitcode enabled Confirmed in 4.23 MAIN @ CL 5291468 ...
A widget set in the Grid Panel reverts back to it's default size and position when compiled
UE - Editor - UI Systems - UMG - Apr 13, 2022A widget set to a specific row and column within a Grid Panel, that has been assigned multiple rows and columns, and then spanned across other rows and columns reverts to it's default position and s ...
GPU Crash from invalid SRV in CreateShaderResourceView due to integer underflow
UE - Graphics Features - Ray Tracing - Jan 15, 2025The GPU crashes after the ray tracing geometry builder attempts to create a shader resource view with an invalid offset. ...
World Source in Take Recorder does not record auto-tracked actors properly
UE - Virtual Production - Tools - Take Recorder - May 23, 2025The Take Recorder plugin allows for multiple sources to be recorded during gameplay. The World Source is expected to record everything in the level when the Autotrack Actors option is enabled. Once ...
[CrashReport] UE4Editor_D3D11RHI!VerifyD3D11Result() [d3d11util.cpp:233]
UE - Graphics Features - Jan 24, 2018No user comments ...
UWorld::GetNetMode returns incorrect value during UGameInstance::StartPlayInEditorGameInstance
UE - Networking - Jan 19, 2023During PIE instance initialization, there seems to be a window during which UWorld::GetNetMode will not return the expected value: before the instance's NetDriver has been created but after UGameIns ...
UWorldPartitionSubsystem::IsStreamingCompleted returning the wrong query result when all cells and actors in location are in DataLayers
UE - World Creation - Worldbuilding Tools - World Partition - Jul 24, 2025Context: Data Layers is a system within World Partition used to organize Actors both in the Editor and at runtime. It allows for the user to dynamically load and unload layers in the Editor to help ...