Unreal Engine Issues
Unreal Engine Issues
Niagara crash sampling vector field in and event handler stage
UE - Niagara - Mar 13, 2023Integrity of AnimSyncMarkers compromised while playing AnimMontage with root motion in server side
UE - Anim - Gameplay - Jan 11, 2023Reference UDN as it explains well the cause of the issue. ...
VolumetricCloud crashes in orthographic view
UE - Graphics Features - Feb 17, 2025FVolumetricRenderTargetViewStateData structure for the orthographic view is not initialized and the structure has some uninitialized member variables. If uninitialized FVolumetricRenderTargetViewSta ...
Doing a scene capture of a particle off screen on a thread other than the game thread in a packaged game asserts/crashes
UE - Niagara - Feb 15, 2018From licensee: When building and running the package on windows or other platforms, the game stops at an Assert when a particle is being rendered (off screen) from a thread other than the game thre ...
Crash when breaking Level Instance within Data Layer Asset
UE - World Creation - Worldbuilding Tools - World Partition - Feb 2, 2023A crash occurs when breaking a level instance contained in a data layer. This does not occur in 5.0.3, however the behaviors of Data Layers are different in 5.1 where the Data Layer asset is added ...
Blueprint Interfaces cannot pass by reference between two blueprints
UE - Gameplay - Blueprint - Feb 25, 2015Pass by reference variables do not work when called from a blueprint interface between two blueprints. Workaround: Use direct communication to pass by reference between two blueprints. ...
Toggling a Spline component from an open/closed loop through bp's isn't reflected
Tools - Jan 19, 2015Toggling a Spline component from an open/closed loop through bp's isn't reflected ...
FBodyInstance::GetBodyBounds fails if RigidActorSync is a PxRigidStatic
UE - Simulation - Physics - Dec 3, 2015A user reported that FBodyInstance::GetBodyBounds() fails if RigidActorSync is a PxRigidStatic. They stated that it returns uninitialized data because PxRigidStatic does not subclass PxRigidBody. ...
Editor Crashes when copy/pasting an emitter in the Niagara timeline
UE - Niagara - Feb 8, 2023When creating the emitter's track widget we search for the stack view model's root entry, but the stack view model pointer is null, so we crash. ...
Building the Engine using Visual Studio 2015 can fail if Windows Driver Kit is installed.
UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 26, 2015There is a possible logic bug in Visual Studio 2015's vcvarsqueryregistry.bat where it locates the include path for the Universal CRT by looking at the last folder in the specified location. This se ...