Unreal Engine Issues
Unreal Engine Issues
Crash smoothing landscape with foliage
UE - LD & Modeling - Terrain - Landscape - Mar 25, 2016Getting a crash when smoothing out landscape that has foliage painted on it. Seems to happen when I release the mouse. ...
Unexpected behavior resulting from overlapping or touching physics actors when Simulate Physics is enabled through input
UE - Simulation - Physics - Sep 21, 2015Weird behavior occurs when toggling Simulate Physics on physics actors by input instead of on BeginPlay. Multiple odd behaviors are present such as touching physics actors ignoring collision. Test ...
Key "F" for Focus acts Sporadically in the Static Mesh Editor Viewport
Tools - Dec 15, 2016In the Static Mesh Editor Viewport, hitting "F" for Focus results in placing the view camera sporadically so that mesh is not always centered and frequently out of frame altogether. Regression: Yes ...
Launch On from Windows to Linux fails with missing GLSL_430 shaders
UE - Platform - Linux - Nov 16, 2016GLSL_430 shaders are not cooked when deploying a project from Windows to Linux using Launch On. LogPlayLevel: PLINK: [31m[2016.11.16-18.36.22:414][ 0]LogMaterial:Error: The global shader cache fi ...
Collapsing a local variable Get/Set node into a new function or macro will result in a BP compile error.
UE - Gameplay - Blueprint - Apr 21, 2017We currently overlook local variables being collapsed into new function and/or macro graphs, where they are no longer in scope. Current workaround: Manually delete local variable "get" and "set" no ...
Enabling bUpdateComponentTransformToRootBone in a GeometryCollectionComponent causes broken particles to appear in the wrong location
UE - Simulation - Visual - Jun 22, 2025Enabling bUpdateComponentTransformToRootBone in a GeometryCollectionComponent causes broken particles to appear in the wrong location. When that flag is true, the moment the GeometryCollection (GC) ...
Local class variables do not correctly populate
UE - Gameplay - Blueprint - Dec 2, 2015Local class type variables do not correctly populate with default value information. Variables of a class type populate with default value information normally. ...
Inside a BP Interface, changing a Function output to an input will cause a compile error in the reference bp
UE - Gameplay - Blueprint - Apr 6, 2015Inside a BP Interface, changing a Function output to an input will cause a compile error in the reference bp. [Error] "Graph named 'NewFunction_0' already exists in 'bpActor'. Another one cannot be ...
Calling SetupAttachment/AttachToComponent with 'this' as the parent inside a USceneComponent subtype's C++ ctor for nested component subobjects will result in all instances of the nested default subobject trying to attach to the CDO at registration time.
UE - Gameplay - Nov 16, 2016This occurs because the 'AttachParent' property is a UPROPERTY, and as a result when we create a new instance of a USceneComponent subtype, any USceneComponent subtypes it owns are treated as instan ...
Reordering Instance Editable arrays in a Character Blueprint breaks the array
Tools - Nov 14, 2017When re-arranging an array that has been added to a character blueprint, the array adds an empty value to element [0] and leaves it in a broken state. I tested this using the Level blueprint as well ...