Crash when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles.

OLD - Anim - Jun 15, 2018

the editor Crashes when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles. Found in 4.19 CL# 4033 ...

Editor not properly handling frame ranges for 60fps animations

OLD - Anim - May 21, 2015

The editor does not seem to be handling frame ranges properly for 60fps animations. Say you have a 200 frame animation that spans frame 0-200. Upon import it will be 201 frames. If you set the ra ...

Editor Crashes when Isolating a Material Element on Skeletal Meshes with Ray Tracing Enabled

UE - Graphics Features - Lumen - Jul 3, 2019

With ray tracing turned on, clicking on the isolate material option next to a material slot on a skeletal mesh with more than one material slot, causes the editor to crash. Found in 4.22 CL# 7053647 ...

Crash exiting play in vr preview with -Vulkan and Oculus Rift

UE - Platform - XR - Dec 22, 2017

Editor crashes after exiting a play in vr session with -Vulkan enabled Exclusive to Oculus Rift ...

[CrashReport] UE4Editor_Engine!UEdGraphPin::SerializePin() [edgraphpin.cpp:1497]

UE - Gameplay - Blueprint - Aug 11, 2016

Ctrl Z a massive copy pasteI was modifying a blueprint dealing with Draw material to render target.Undoing in Blueprint Editor.Kevin.R - Undid a pin reconnecting... investigating ...

BP nativization emits incorrect C++ code for noexport-typed struct field access in some cases.

UE - Gameplay - Blueprint - Dec 18, 2019

In BlueprintCompilerCppBackendUtils.cpp: #define MAP_BASE_STRUCTURE_ACCESS(x) \ BaseStructureAccessorsMap.Add(x, TEXT("#x")) Needs to be changed to: #define MAP_BASE_STRUCTURE_ACCESS(x) \ ...

A Blueprint containing an array Swap node will fail to be nativized.

UE - Gameplay - Blueprint - Jul 17, 2020

Blueprint assets that utilize an array "swap" node to swap elements cannot currently be converted to C++. Current workaround: Either avoid use of the "swap" node or exclude the Blueprint asset from ...

Crash undoing static mesh translations several times

UE - Networking - Oct 13, 2016

Crash occurring when you undo moving a static mesh around in the viewport This is NOT occurring in 4.14 ...

Editor crashes when importing alembic asset

UE - Gameplay - Aug 28, 2016

Editor crashes when importing Alembic material asset. The editor will crash once selecting the asset in Windows explorer, before the Import Options window appears. When testing this, we had an ave ...

The showdebug abilitysystem command crashes editor when the target is a child actor

UE - Gameplay - Dec 2, 2021

An actor with an AbilitySystemComponent that is spawned by a ChildActorComponent will have a null AbilityActorInfo. This leads to a crash in the ASC when GetDebugTarget attempts to access AbilityAct ...