Unreal Engine Issues
Unreal Engine Issues
OnPaint function causes artifacts to show up in a New Editor window
UE - Editor - UI Systems - Jun 17, 2015If the the onpaint function is used it can cause the top and left sides of the screen to retain artifacts. Attached image for reference. ...
Shadow Quality regression on mobile for Movable Directional Lights
UE - Platform - Mobile - Oct 11, 2016Shadow quality from a movable directional light has lower resolution quality than the previous release of the engine. This is a regression in quality from 4.12.5 to 4.13. Tested with: Good Quality ...
OnRep functions not overrideable in child BPs
UE - Gameplay - Blueprint Editor - Feb 27, 2018The function that is Auto-Generated when creating RepNotify Variables is not overrideable in child blueprints. (Potentially involved with the inability to add inputs/outputs to OnRep_ functions) ...
[SM5] Material.usf Error when Previewing Material Function Output
UE - Graphics Features - Jul 21, 2016A user on the AnswerHub found an SM5 material error within his material function after following the tutorial below. [Link Removed] I followed the tutorial until I reached the point in which the e ...
Landscape Creates Two Shadows with Baked Static/Stationary Lighting
UE - LD & Modeling - Terrain - Landscape - May 25, 2016It appears two shadows are created when building static lighting for Landscapes. One seems to be offset while the other is accurate to the angle of the light source. I tested this in 4.9.2, 4.10.4, ...
Changing "Coordinate Light Map Index" When "Generate Lightmap UVs" Is Enabled In A Static Mesh Crashes Engine
Tools - Dec 31, 2019When altering "Coordinate Light Map Index" in a static mesh when "Generate Lightmap UVs" is enabled in LOD 0 the engine will crash or "Coordinate Light Map Index" will be set to 0. A demonstration ...
Meta data specifier WorldContext prevents functions from being called in Object blueprints
UE - Gameplay - Blueprint - Aug 31, 2017If a UFUNCTION is declared as both BlueprintCallabl as well as static, with the meta specifier "WorldContext = "SomeContext"", the function does not show up in the list of function calls for any blu ...
Precomputed AO Mask renders with value of zero after building lighting
UE - Rendering Architecture - Materials - Jan 13, 2023Regression: Tested in UE5/Release-5.0 at CL 20979098, this issue does not occur so it is a regression. This issue occurs in 5.1 for both normal light building and GPU Lightmass building. In 5.0 th ...
Functions within timers are not being fired off in widgets when set of the default cursor (Standalone mode)
UE - Editor - UI Systems - Mar 2, 2015If a user has a custom cursor that uses timers that call a function in 4.7, the functions will not run when that widget is applied as the default mouse via the Edit > Project Settings > User Interfa ...
OnKeyDown does not function in packaged game
UE - Editor - UI Systems - Jul 17, 2015Pressing down a key for a widget blueprint works in PIE however, it's not functioning once the project is packaged. Project Rar File: [Link Removed] ...