Unreal Engine Issues
Unreal Engine Issues
Ctrl-Z does not function in Static Mesh Editor
Tools - May 26, 2015When applying a Material to a Static Mesh in the SM Editor, an event for the undo function is never created and when you undo you are undoing the last action outside of the SM Editor. Also reproduc ...
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 ...
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 ...
Each changing collision response increases FPhysXTask count
UE - Simulation - Physics - Jul 8, 2019calling SetCollisionResponseToChannel or something similar, FPhysXTask will ever increase . Finally, it causes serious frame rate drop. That count can be reset by calling RecreatePhysicsState. ...
The behavior of translucent sorting is different between 4.23 and later.
UE - Graphics Features - Apr 24, 2020Also, from 4.23 onwards, if you move the mesh back and forth, the order of the translucent sort will be switched. ...
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 ...
Filtering by collection is broken
UE - Editor - Content Pipeline - Content Browser - Mar 2, 2019This happens because the Collections module isn't loaded when the FFrontendFilter_TextFilterExpressionContext instance is created: , CollectionManager(FCollectionManagerModule::IsModuleAvailable() ...
Crash when launching dx12 for the first time with Rect Lights
UE - Rendering Architecture - RHI - Mar 20, 2019Users on the forums are hitting a crash on their initial launch of the engine into dx12. There is currently a workaround to load into the project with dx11 first, compile shaders, then youre fine to ...
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# ...