Unreal Engine Issues
Unreal Engine Issues
Multiplayer VR Preview Support Broken
UE - Platform - XR - Jul 11, 2016The VR Preview used to work with multiple clients but now only works with the first client. This makes testing multiplayer features difficult or impossible as there is no way to change which client ...
[CrashReport] UE4Editor_Core!FModuleManager::UnloadModule() [modulemanager.cpp:557]
UE - Foundation - Core - Feb 27, 2017Error message: Assertion failed: ModuleInfo.Module.IsUnique() [Link Removed] [Line: 557] Source Context: Most recent user affected CL: Logs: See attached Issue call stack shares some similariti ...
Procedural Mesh Component 'Create StaticMesh' Function corrupts mesh tangents
UE - LD & Modeling - Modeling Tools - Mesh Editing - Oct 25, 2018After clicking 'Create StaticMesh' button on an Procedural Mesh Component, and saving the mesh, the created mesh has bad tangents. Included in the attachments, is a test project with a parallax mate ...
Split pins on nodes within sub-graphs in an animation blueprint are broken
UE - Anim - Runtime - Mar 16, 2021There's a bug in the anim bp compiler which results in split pins on animation nodes not being merged properly back onto their parent pin during compilation. The result of this is that any input to ...
In Vehicle sims, CenterOfMass override isn't factored into UpdateMassProperties
UE - Runtime - Character - Mar 24, 2025Origin from this UDN ticket, https://udn.unrealengine.com/s/question/0D5QP00000sGtbO0AS/chaosvehiclemovementcomponent-intertia-tensor-isnt-adjusted-for-center-of-mass-override?fromCase=1 TLDR is th ...
GroomComponent: SetVisibility(false) causes per-frame simulation reset instead of stopping it
UE - Runtime - Deformable - Mar 12, 2026UGroomComponent::TickComponent sets bResetSimulation = true every frame when the component is not visible. This causes NiagaraDataInterfaceHairStrands to triggering a full simulation reset every fra ...
TSoftObjectPtr does not replicate properly
UE - Networking - Nov 27, 2018Right now USoftObjectProperty does not implement NetSerializeItem so it falls back to the implementation in UObjectPropertyBase. This only works correctly if the object happens to be in memory, othe ...
World Memory Leak crash creating new level blueprint after editing sub level blueprint
UE - Gameplay - Jan 27, 2020Crash occurs when the user adds a sublevel to the current level, edits the sublevel's level blueprint, and then attempts to make a new level. The state which triggers the crash seems to be when the ...
User can still attempt to delete tags above a subtag they just added
UE - Gameplay - Dec 5, 2016In the Gameplay Tag List, if the user adds a string of tags, then adds one on top of it, attempting to delete the previous end subtag will produce a toast saying the tags were deleted. However, the ...
Detaching part of the Visual Logger window and then closing the Visual Logger tab causes a crash
UE - AI Workflows - UI Systems - Slate - Nov 18, 2021It seems that when a section of the Visual Logger is detached from the window as a whole and then that window is closed when docked next to the Content Browser, then the engine crashes. However, whe ...