Unreal Engine Issues
Unreal Engine Issues
Translucent Materials no longer reflect light when using Forward Lighting variable
UE - Graphics Features - Jun 7, 2016Translucent materials are no longer showing light reflections in scene when using r.forwardlighting 1 with lights. This is a regression from functionality in 4.11.2. This no longer works with 4.12 ...
CharacterMovement doesn't clear velocity
UE - Simulation - Physics - Oct 11, 2024Velocities are not being cleared when physics simulation set to false. ...
Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False
UE - Rendering Architecture - Aug 8, 2025The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...
TextRender components do not update until blueprint is saved and compiled
UE - Gameplay - Blueprint - Aug 25, 2015TextRender components do not update when text is changed on compile. The blueprint must be saved, closed, and re-opened for the change to take effect. ...
Cannot change inherited variable default values through details panel
UE - Gameplay - Blueprint - Aug 19, 2015Child blueprints cannot change the default values of inherited variables. ...
Engine Crashing with AMD R9 2 and 3 Series Cards
UE - Graphics Features - Sep 23, 2015Multiple users are reporting crashes in the Engine when using an AMD R9 380 and 390 series cards. There was a request to have these cards added to compat lab for testing, but have not heard any upd ...
Typing Lerp into context menu of material editor does not bring up Linear Interpolate node
UE - Rendering Architecture - Materials - Jul 31, 2015If "lerp" is typed into the context menuof the material editor, "linear interpolate" will not appear as one of the options within the menu. Typing "Linear Interpolate" or pressing L+LMB works as exp ...
Lit Translucency Receiving Shadows with Forward Shading Enabled
UE - Graphics Features - Aug 13, 2018When forward shading is enabled, particles that have materials with their lighting mode set to "VolumetricNonDirectional" will recieve shadows. Attached images provided by user. Found in 4.19 CL# ...
Actor foliage does not respect "foliage.CullDistanceScale"
UE - World Creation - Worldbuilding Tools - Oct 15, 2024Actor foliage does not respect the "foliage.CullDistanceScale" console variable. This was brought up in a UDN: [Link Removed] ...
ES2 Fallback Fails on Nougat Devices that do not support Vulkan
UE - Platform - Mobile - Aug 28, 2016Discovered this while doing RC candidate testing for 4.13 Works fine in all other use cases: Nougat devices that support Vulkan Marshmallow devices that support Vulkan Marshmallow devices that don' ...