User-instanced subobjects owned by a streaming sublevel's Blueprint CDO cannot be garbage collected with the owning world after the sublevel has been reloaded in the editor.

UE - Gameplay - Blueprint - Feb 5, 2020

Strong object reference properties of an 'EditInline'-decorated UCLASS type embedded within a native C++ struct definition can be instanced at edit time by the user as part of a variable's default v ...

Removing components from Landscape with simplified collision results in assertion

UE - LD & Modeling - Terrain - Landscape - May 18, 2017

Performing operations on a Landscape with simplified collision can result in an assertion ...

Crash copying Geometry Cache Track in Sequencer

UE - Anim - Sequencer - Aug 6, 2020

Geometry cache section  will crash in PostLoad when track is copied. See UDN for alternative repro steps and more info on attached repro project. ...

In UInstancedStaticMeshComponent, when some instances have near-zero scale, removing instances crashes the engine

UE - Rendering Architecture - Oct 19, 2023

Class "UInstancedStaticMeshComponent" deliberately leaves null pointers in the "InstanceBodies" array of FBodyInstances. This can be seen in methods such as: [Engine\Source\Runtime\Engine\Private\I ...

Selecting Reimport on a virtual texture results in crash

UE - Graphics Features - Nov 14, 2019

Reimporting a virtual texture results in a crash. Tested in: 4.24P2 CL#10091930 ,  4.25 CL#10183780 ...

Crash occurs when opening FP_Walk_Fwd in the First Person Template

UE - Anim - Runtime - Sep 12, 2023

This is a regression. Tested in //UE5/Release-5.2 CL26001984 Opening the FP_Walk_Fwd animation in the first person template results in an assertion. ...

Selecting a material name for a Skeletal Mesh Sampling region can crash the editor

UE - Niagara - Mar 16, 2022

The editor will crash when clicking on the Material Name selection box a second time. It appears this triggers another selection change with a null input, which crashes the editor. ...

[CrashReport] UE4Editor-NiagaraEditor!UNiagaraStackRendererItem::GetIconBrush() [NiagaraStackRendererItem.cpp:319]

UE - Niagara - May 8, 2020

Generated from CrashReporter Similar issue: [Link Removed] ...

Setting a float variable to a value that's beyond the maximum value of a float causes the editor to become unresponsive

UE - Editor - UI Systems - Localization - Nov 12, 2021

When inputting an extreme large value into a float variable that exceed the maximum value of a float, the engine then becomes unresponsive. I tested this with an integer variable and this did not oc ...

Removing Aimoffset node from anim blueprint crashes editor

OLD - Anim - Aug 27, 2015

Removing Aimoffset node from anim blueprint crashes editor Frequency: 2/2 crashreporter: N/A ...