Unreal Engine Issues
Unreal Engine Issues
Mouse Events cannot be treated as Touch on Android Apps on Chromebook
UE - Platform - Mobile - Mar 18, 2019A licensee reported an issue where mouse events are not able to be used as touch events on Android apps. This was specifically reported on and tested on Chromebooks. After working with Chris Babcock ...
Huge performance hit when recording a demo (demorec)
UE - Networking - Jun 3, 2019The current engine version (4.22) seems to suffer a huge performance hit when using the demo recording (demorec) feature. This issue is present in both the editor and the packaged game (developer bu ...
Deprecated components can still be added via the Add Component button
UE - Gameplay - Blueprint Editor - Oct 19, 2021The UDN has a possible fix for this issue in the Component Type Registry You can use the following as a test C++ class: #pragma once #include "CoreMinimal.h" #include "Components/ActorComp ...
UInstancedStaticMeshComponentRemoveInstances crashes if called with an empty array
This looks like it can be fixed with an early-out when the passed array of indices is empty. Log:[2024.01.03-16.38.36:091][291]LogOutputDevice: Warning: Script Stack (1 frames) : /Game/BP_Crashy.B ...
Calling GetMaterial during compile on load can cause the material shader to fail to compile
UE - Rendering - Architecture - Materials - Oct 4, 2024Calling UStaticMeshComponent::GetMaterial() during a Blueprint compile on load can cause the Material shader to fail to compile because GetMaterial will trigger a PostLoad call on that Material and ...
Simple HUD in Topdown template will have rendering errors if played in Immersive mode
Tools - Feb 27, 2015Simple HUD in Topdown template will have rendering errors if played in Immersive mode (F11). It will cause a white flickering line on the left and top of the window that will start to blur as the p ...
Adding assets to a project on a drive that is full still creates the file at the desired location instead of in a temporary location and provides no information as to why the asset is failing to load, corrupting the asset
Tools - Oct 31, 2016Adding assets to a project on a drive that is full still creates the file at the desired location instead of in a temporary location and provides no information as to why the asset is failing to loa ...
Orthographic Camera Preview window does not render materials
UE - Graphics Features - Jan 17, 2015I am using the orthographic camera preview fairly extensively for making an in-engine Tiling Texture maker. This feature is currently busted since the orthographic camera preview window is rendering ...
SpawnActor node evaluates pure inputs twice
UE - Gameplay - Blueprint - May 9, 2017When the node Spawn Actors from class is used with a pure input (in this case a pure function with a transform output) The result is that it get evaluated twice. In the test project provided a print ...
[CrashReport] UE4Editor_DestructibleMeshEditor!UDestructibleChunkParamsProxy::PostEditChangeProperty() [destructiblechunkparamsproxy.cpp:18]
UE - Simulation - Physics - Destruction - Sep 14, 2017This is a somewhat common crash occurring for users in 4.17 User Descriptionsdeleted something Source Context 7 UDestructibleChunkParamsProxy::UDestructibleChunkParamsProxy(const FObjectI ...