Unreal Engine Issues
Unreal Engine Issues
Sampling UV1 on a Nanite mesh with one UV channel returns a constant value
UE - Rendering Architecture - May 17, 2023This is general for any UV channel past what the static mesh has, rather than specifically for UV channel 1. ...
Slate Widget fails to compile once added to a new project
UE - Foundation - Core - Jan 28, 2015Slate Widget fails to compile when you add it to a new project. Expected as a user that anything in that default list should be able to be added and compile fine without making any changes. Compil ...
Splash Screen orientation will not change when in Portrait and Upside Down on iPhone 5
UE - Platform - Mobile - Mar 12, 2015When changing the Orientation in the iOS settings to Portrait and Upside Down, the splash screen will still appear in the landscape orientation when the project opens. this issue will only occur on ...
Hardware Raytracing on Lumen can cause a crash on AMD Radeon GPUs
UE - Graphics Features - Lumen - Jul 29, 2025Hardware Raytracing support can cause a crash on AMD Radeon GPUs when creating the RT pipeline state. ...
Splash screen on iOS is stretched
UE - Platform - Mobile - Dec 22, 2015The splash screen on the iPhone 6s is stretched when loading. Tested alongside the iPhone 5s and the Samsung Galaxy Note 2 for comparison. The stretching only occurs on the 6s. iPhone 6s: 6240_iPho ...
Twinmotion hangs when importing an .obj file.
TM - Interoperability - Feb 1, 2024Reported by client in SF [Link Removed] When importing an obj file, Twinmotion hands during the import. This only occurs in 2023.2.1 and does not occur in the 2023.1.2 version or earlier. Was able ...
With Ray Tracing Enabled And The RenderDoc Plugin Enabled Shadows Don't Render Correctly On Reflective Materials
UE - Graphics Features - Lumen - Jan 23, 2020When the RenderDoc plugin is installed with raytracing enabled shadows don't render correctly. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11087956 ...
If CustomNearClippingPlane of UCineCameraComponent changed, it will be reflected in normal CameraComponent as well
UE - Anim - Sequencer - Feb 17, 2023CustomNearClippingPlane of UCineCameraComponent is new property in 5.1, but if use change this, it will also be reflected in the normal CameraComponent's NearClip. This is because the PerspectiveNe ...
"Invalid resource entry creating uniform buffer" when running Vulkan on Mobile
UE - Platform - Mobile - Apr 30, 2019Android projects in 4.22.1 crash on launch with Vulkan enabled. Did NOT reproduce in 4.23 MAIN at CL 6156332 4.22.1 release CL is the same as a related fix for this ( [Link Removed] ) ...
Rendered panoramas using Lumen may be overexposed
TM - Rendering - Sep 30, 2025Reported in SF [Link Removed] Lumen Panorama renders in 2025.2 may appear overexposed compared to the viewport, or when comparing the same render produced in 2025.1.1 This only appears to occur wi ...