Unreal Engine Issues
Unreal Engine Issues
Changing Shadow Quality causes SingleLayerWater Materials to disappear
UE - Rendering Architecture - Materials - Nov 15, 2022Regression: Tested in UE5/Release-5.0, issue is reproduceable. This issue appears to be related to the Opacity Mask of the material, as not having an Opacity Mask does not cause the material to dis ...
Callling "Get[AxisMapping]" or adding AxisMapping Event node in blueprint will break code input implementation for that axis mapping
UE - Gameplay - Input - Aug 17, 2016When character input is defined in code, adding a call to the Get[AxisMapping] node in blueprints causes input for the specific mapping to fail. Note: This only affects code based input, Blueprint ...
BSP brushes get Clipped or Disappear relative to the Surface Normals of a nearby Brush when Deleting/Flipping Faces
UE - LD & Modeling - Modeling Tools - BSP - May 1, 2017While testing this issue it was interesting to discover how the surrounding BSP's were affected. They seemed to clip/disappear according to the surface normals of the deleted brushes. There is a si ...
After loading a SubLevel from the PersistentLevel of WorldComposition, the offset of WorldComposition is applied when loading the SubLevel alone
UE - World Creation - Worldbuilding Tools - World Composition - Aug 30, 2018When loading a Sub Level from the Persistent Level of World Composition, the offset of WorldComposition is applied when loading the Sub Level by itself. The offset can be applied repeatedly when rel ...
Lansdcape grass generation fails on Mac running OSX 10.10.1
UE - Platform - Mobile - May 12, 2015Grass map heights all appear to be 0 when generating grass on a Mac running 10.10. This bug does not occur on Macs running OSX 10.9.5 Putting a breakpoint in LandscapeGrass.cpp line 476 you can se ...
Disabling the Paper 2D plugin causes a packaged project to not open
UE - Foundation - Cpp Tools - Automation Tool - Jun 19, 2017When working in a project that is in 4.16, disabling the Paper2D plugin causes a packaged version of the project to not open. This issue is different from previous versions as disabling the plugin i ...
Import Threashold Time setting ignores decimal entries
Tools - Aug 10, 2016Import Threshold Time setting in Editor Preferences does not accept values with a leading decimal point (.25 vs 0.25). UEditorLoadingSavingSettings::AutoReimportThreshold in EditorLoadingSavingSett ...
WASM HTML5 Runs out of Memory in Chrome versions 58+ on Windows
UE - Platform - Mobile - May 5, 2017We were seeing out-of-memory errors when launching on Chrome version 58 on Windows (both 32-bit and 64-bit). After some investigation, the root cause appears to be a regression introduced in Chrome ...
Duplicate .so files in GoogleVR.
UE - Platform - XR - Jun 2, 2017A licensee recently pointed out that there are now several GoogleVR lib files in 4.16 that are present in the Engine twice due to some of them being copied into a subdirectory. For example, , in 4.1 ...
AddForce behaves inconsistently between PIE and Standalone Game / Build
UE - Simulation - Physics - Apr 23, 2020This example consists of a simple BP Actor, containing a Collision Sphere and Static Mesh (Sphere). The BP has Simulate Physics Ticked on, the Mass in KG is 1 and collision preset is set to Block Al ...