Unreal Engine Issues
Unreal Engine Issues
Allow Window Resize has no effect on Linux
UE - Platform - Linux - Jun 8, 2017Checking the option for Allow Window Resize in Project Settings allows a the borders of a standalone window to be grabbed and used to resize the window. This does not behave the same on Linux and t ...
QAGame projectile collisions are not working
UE - Simulation - Physics - Jul 3, 2017I was not able to repro this with template projects in //UE4/Release-4.17. I was not able to repro the lack of collision to the same static mesh I shot at if I tried to run into it. That is why I me ...
Crash when null texture parameter is present on a MIC
UE - Rendering - Architecture - Materials - Apr 22, 2022From UDN: [Link Removed] Proposed fix: int32 FHLSLMaterialTranslator::TextureParameter(FName ParameterName, UTexture* InDefaultValue, int32& TextureReferenceIndex, EMaterialSamplerType SamplerType ...
All public inline methods of class "FBlueprintEditor" are inaccessible to other modules due to "DLLIMPORT"
UE - Framework - Blueprint Editor - Jun 28, 2024Class "FBlueprintEditor" has several inline getter methods as part of its public API (e.g. GetPreviewActor() and GetPreviewScene()). However, even though they are public, those methods are inaccessi ...
The CTRL+S shortcut does not save an opened Sequence it the Sequencer Window is undocked
UE - Anim - Sequencer - Jul 29, 2025The CTRL+S shortcut does not save an opened Sequence it the Sequencer Window is undocked. Docking the Sequencer Window to the main window fixes the issue. I've reproduced the behavior on UE versions ...
A Client connected to a Server that then destroys the session and rejoins will be disconnected after a short time
UE - Networking - Dec 8, 2015A Client connected to a Server that then destroys the session and rejoins will be disconnected after a short time. Unable to reproduce in a new project, however this has been reported multiple times ...
Landscape Tessellation shadow depth performance cost higher than expected
UE - LD & Modeling - Terrain - Landscape - Aug 23, 2016Using tessellation on Landscapes causes a greater impact in performance than what is expected. In the screenshots provided there is a comparison between tessellation disabled and flat tessellation ...
[CrashReport] UE4Editor_Foliage!FMulticastDelegateBase<FWeakObjectPtr>::AddInternal() [multicastdelegatebase.h:113]
UE - World Creation - Worldbuilding Tools - Foliage - Jul 6, 2017This is a common crash in the 4.16 release. The callstack is similar to [Link Removed], but that was fixed in 4.16.2 while this crash still occurs. Users have not provided any additional informati ...
Characters using NavWalking on server have noticeable jitter on clients at lower framerates
UE - AI - Aug 23, 2018AI nav walking doesn't allow clients to set a "Base" for the character (SetBase from UpdateFloorFromAdjustment), so there is no floor result on frames where there is a net update. This causes simula ...
Post Process Material + Stereo Rendering = Left Eye Black
UE - Platform - XR - Dec 16, 2019Left Eye Renders black in VR when a PostProcess Material is applied. On Quest Right eye renders post process mat and left eye renders scene, but upsidedown. Also occurs in Packaged Project and/or ...