Unreal Engine Issues
Unreal Engine Issues
UbaAgent in 5.7 depends on qwave.dll, which is not available on Server Core
UE - Foundation - Cpp Tools - UnrealBuildAccelerator - Nov 19, 2025A licensee runs UbaAgent on Windows Server Core. This worked in 5.5 and 5.6, but broke in 5.7. After some investigation, they found that UbaAgent took a new (hard) dependency on qwave.dll in order ...
Split screen - Player 2 doesn't receive input when created with Create Local Player node
UE - Gameplay - Input - Jan 4, 2023This is a regression. Tested in //UE5/Release-5.0 CL20979098. Split screen extra controllers ignored when using Create Local Player node. May just be Enhanced Input related. ...
Scale box affects all children in a parent container widget when setting User Specified Scale
UE - Editor - UI Systems - Jul 5, 2018When a scale box is the the first child of a container widget, setting the user specified scale to 0 will affect all other widgets in the same parent container. ...
r.Shadow.RadiusThreshold and r.Shadow.FadeResolution not affected by Scalability Settings
UE - Graphics Features - Apr 20, 2018r.Shadow.FadeResolution and r.Shadow.RadiusThreshold values in DefaultScalability.ini are not being applied ...
Layer's preview weight does not have an affect on the Preview Material for Landscape Layer Blend nodes
UE - Rendering Architecture - Materials - Apr 19, 2022Layer's preview weight does not have an affect on the Preview Material for Landscape Layer Blend nodes. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the preview window did g ...
Map placed actor binding to another actor's Event Dispatcher (multicast delegate) results in duplicate bindings after blueprint recompile
UE - Framework - Blueprint - Apr 17, 2025Context Blueprint actors placed on the map can bind to another actor's event. If an ActorB has a reference to ActorA, it can bind to an event dispatcher in A by creating an event node in ActorB's e ...
Vehicle Template with Thruster Configuration will be affected by force relative to the distance from the origin
UE - Simulation - Physics - Mar 18, 2025Vehicle Template vehicle with added Thruster Configuration to its VehicleMovementComponent will be affected by force relative to the distance from the origin. At around 200000 the force is enough to ...
Lyra standalone game instance crashes when Player #2 equips new weapon
UE - Gameplay - Input - Apr 5, 2022Discovered while testing Lyra project for //UE5/Main - Foundation Shelf - FAssetDataGatherer Stall Fix Smoke. This issue is NOT dependent on the shelf and occurs without the unshelved files. This ...
Failed to register input back buffer crash when opening a project with PixelStreaming on Windows 7
PixelStreaming - Sep 19, 2018Projects crash upon opening with the PixelStreaming plugin enabled. ...
Migrating a project from UE5.2 to UE5.3.1, there was a difference in the navmesh generated on HISM
UE - AI - Navigation - Oct 24, 2023HISM is generated by ConstructionScript Actor is placed on the level and navmesh is generated on top of HISM. In UE5.2, the navmesh was generated without splitting on the HISM. In UE5.3, a break occ ...