Editor Crashes when placing a widget blueprint from one widget blueprint into another via the user created section

UE - Editor - UI Systems - Oct 8, 2014

CHANGELIST: 4.5.0-2316912 CRASHREPORT: Did not produce an error report CALLSTACK: Did not produce an error report DESCRIPTION:   Editor Crashes when placing a widget blueprint from one widget b ...

Surface snapping attached actors cause unexpected behavior

Tools - May 17, 2019

Surface snapping causes erratic changes in scale to StaticMeshActors that have children of the same type. The user also has provided a potential solution to this bug (Please see the code below. N ...

Modulated shadows do not render in the correct area on older devices / versions of Android OS

UE - Platform - Mobile - Apr 5, 2016

This issue was reported by a user who was having issues with their modulated shadows showing up in random spots on their mobile devices. Their devices were a Samsung Galaxy Note 2 and a ASUS Zenfon ...

[CrashReport] Linux crash - /usr/lib/nvidia-375/libGLX_nvidia.so.0()

UE - Platform - Linux - Jul 27, 2017

This is a common Linux crash that has occurred since at least 4.14. From LogLogEditorViewport: Clicking on Actor (LMB): StaticMeshActor (pared_cubos15) LogRHI: Timed out while waiting for GPU to ...

Float values are changed slightly in blueprints

UE - Editor - UI Systems - Slate - May 23, 2019

Some float values appear to be slightly altered when they are input into a float field in blueprints. For example 2.6 will be changed to 2.599999. Regression: This did not appear to occur in the 4 ...

Crash when launching 4.14.2 in cmd window with -dx12 argument

UE - Graphics Features - Jan 3, 2017

Launching the editor with DX12 from a command window is crashing the engine. Note Crash occurs on Nvidia version 376.19 and does not occur on 376.33 This is a Regression ...

Destructible mesh loses collision and physics after packaging in 4.18.2

UE - Simulation - Physics - Destruction - Jan 17, 2018

Destructible Meshes are losing collision and physics after a project has been packaged. They will work normally when running PIE. ...

InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights

UE - Platform - Mobile - Aug 22, 2019

This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...

Unable to affect setting cubemap blend in skyLight and reflections on transluscent materials

UE - Rendering Architecture - Oct 17, 2023

Attempting to blend SkyLight Cubemaps via the SetCubemapBlend function to blend between different Cubemaps to make the changes seamless is not reflected. As a workaround, in LumenTracingCommon.ush, ...

[CrashReport] Mac/Metal Intel compiler crash - UE4Editor-MetalRHI.dylib!CreateMTLRenderPipeline()

UE - Graphics Features - Oct 27, 2017

Mark S: This is an Intel compiler failure on macOS 10.12.6. Callstack from LogAssertion failed: [File:/Users/build/Build/++UE4+Release-4.18+Compile/Sync/Engine/Source/Runtime/Apple/MetalRHI/Privat ...