Unreal Engine Issues
Unreal Engine Issues
Typo in Content Examples Lighting Level
Docs - Samples - Jun 18, 2015User has found a misleading typo in the Lighting Level of Content Examples. Specifically 5.4, the Source Radius = on both examples should be Min Roughness = [Image Removed] Also Reproduced in 4.8 ...
Subsurface materials display dark lines in the middle of the viewport
UE - Graphics Features - Dec 8, 2017AMD gpus are displaying an issue with subsurface materials. Dark lines appear on the material that run through the middle of the viewport, (See screenshot attached). This was seen on AMD drivers 17. ...
Setting inherited variables in child blueprint crash editor
UE - Gameplay - Blueprint - Apr 15, 2015PIE without compiling child blueprint (3rdSpiderPawn in example) that is attempting to affect an inherited variable will crash the editor. Additional Information: User has several cast to nodes ca ...
Failed to compile UE4 on Mac using incompatible Xcode version
UE - Platform - Apple - Apr 7, 2017Clone the GitHub repo for 4.15.1, run setup, gpf, then build UE4. Fails to compile due to metal errors. It would be nice if we could produce a warning if the compiler being used is newer than what ...
Gradual drop in Performance on Windows 10 projects after Toggling Fullscreen
Tools - Nov 30, 2015It seems that when working in any project on a Windows 10 machine, there is a gradual rise in frames per second and a consistent drop in performance. The user reporting this issue claims his frame ...
Cannot hide most Blueprint categories from the Class Settings
UE - Gameplay - Blueprint - Apr 29, 2015Cannot hide most Blueprint categories from the Class Settings of a bp. x = Cannot hide Actor - Hid-able Add Component - x Add Event - x AI - x Animation - Hid-able Audio - Hid-able Canvas Render T ...
UnrealFrontend has missing tooltips in drop down menus
Tools - Aug 17, 2016Unreal Frontend does not have tooltips for the options in the drop down menus. I do not see this with the Project Launcher. REGRESSION: Yes Worked: This previously worked in 4.12.5 Binary CL-30392 ...
Shadows Appear when Approached and Disappear when Distant on Movable Objects
Docs - Samples - Sep 21, 2016While working on writing test cases for content examples, I discovered that the shadow behind certain objects appear and disappear depending on the distance from the camera. This might be similar ...
Using Certain Names in Blueprint Math Expression Causes Compiler Error
UE - Gameplay - Blueprint - Aug 8, 2016Entering a value such as x1-x0 into a math expression node is causing a compiler error in blueprints. This is inconsistent with the behavior in 4.12.5, when entering the same expression would cause ...
Viewport stuttering during orbit/zoom navigation
UE - Rendering - Features - Dec 17, 2025Received a report of persistent stutters in the editor when trying to navigate in the viewport, including asset editor viewports like the Skeletal mesh editor and control rig editor. Hardware used ...