Crash, Couldn t find Shader FHitProxyVS for Material Resource M_Glass

UE - Graphics Features - Aug 18, 2014

Changing the properties of M_Glass and M_Metal_Copper to two sided via the property matrix crashes the editor to desktop. (Note: M_Glass with ANY of the M_Metal Materials except M_Metal_Chrome will ...

Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin

UE - Gameplay - Jun 3, 2016

Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin **This is a regression. It was working in 4.11.2 Could also be related to: [Link Removed] User D ...

Crash when using StaticDuplicateObject with mismathced Source and Destination class types

UE - Foundation - Jun 19, 2025

Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...

Editor crash when adding mesh renderer elements in Niagara

UE - Niagara - Jul 8, 2025

When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...

Add Submix Effect Blueprint Does Not Have Any Effect

UE - Audio - Dec 11, 2020

Adding a second effect to the Submix Effect Chain on a Submix works as expected, but when trying to add a Submix Effect via Blueprint, there is no effect.  This also applies to "Add Master Submix Ef ...

GAS: Removing an AttributeSet followed by removing an active GameplayEffect results in client crash

UE - Gameplay - Gameplay Ability System - Aug 23, 2023

Gameplay Ability System Standalone: Removing an attribute set and then removing an active gameplay effect that has a modifier for an attribute from that set results in a crash. Currently, one must ...

An ensure is triggered when a StaticMesh is set inside a StaticMeshComponent on an actor, and another actor references the static mesh actor from two child actor components.

UE - Content - Engine - Feb 5, 2025

There is an issue when setting a Static Mesh inside a blueprint that it is referenced by another blueprint with more than one child actor. An ensure is triggered inside the engine, and there is a ...

ARM64 projects crash on device with Signal 11 with GooglePlay plugin enabled

UE - Platform - Mobile - Sep 20, 2016

When launching ASTC ARM64 packaged project onto S7, it'll crash with Signal 11. It seems very similar to [Link Removed]. ...

[CrashReport] UnrealEditor-AnimGraph!UAnimGraphNode_Base::GetAnimBlueprint() [AnimGraphNode_Base.h:306]

UE - Anim - Sequencer - May 16, 2022

Generated from CrashReporter ...

Crash on exit PIE when playing with more than one player on Linux

UE - Platform - Linux - Oct 3, 2016

When playing in non-single player game in the editor (either set # players or check dedicated server checkbox), the editor will crash when the play session ends. Regression: Yes - editor does not c ...