InstanceData->SetInstance crash when transforming InstancedStaticMesh

UE - Graphics Features - Nov 13, 2017

When updating InstanceStaticMesh transform from C++ or BP, UpdateInstanceTransform then FStaticMeshInstanceBuffer::UpdateInstanceData gets called. Sometimes InstanceData->SetInstance in FStaticMeshI ...

Crash in FMediaPlayerBase::TickPlayer in Shipping builds

Media Framework - Jul 28, 2017

A crash can occur in FMediaPlayerBase::TickPlayer in Shipping builds. This is because FMediaPlayerBase::NativePlayer is not a thread-safe shared pointer. The fix is to make it ESPMode::ThreadSafe. ...

Crash when using "Convert to Variable Curve"

OLD - Anim - Jun 7, 2016

Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 7 8 DECLARE_CYCLE_STAT(TEXT("AnimSeq EvalCurveData"), STAT_AnimSeq_EvalCurv ...

Game crashes when Panini projection enabled.

UE - Graphics Features - Jan 15, 2020

Blueprint Struct associations in Blueprint hierarchy causes command line cooker to crash

UE - Gameplay - Blueprint - Oct 13, 2016

If a user creates a specific Blueprint hierarchy with a Blueprint struct, it can cause a issue when the Blueprint struct is being cooked. User description of Blueprint(s) and Blueprint Struct relat ...

Crash when setting Anim to "None" with URO

OLD - Anim - Aug 28, 2019

A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...

Crash serializing LAN query response in OnlineSessionInterfaceSteam

UE - Networking - Aug 28, 2018

Server will crash in FOnlineSessionSteam::AppendSessionToPacket due to the OwningUserId being null. ...

[CrashReport] Linux crash - FVulkanCommandBufferManager::WaitForCmdBuffer

UE - Graphics Features - Aug 22, 2017

This is a semi-common Linux crash coming out of 4.17.1. It is spread among a few different similar callstack affecting a handful of users. [Link Removed] [Link Removed] [Link Removed] [Link Removed ...

Crash in MobilePatchingLibrary OnInstallComplete when install fails

UE - Platform - Mobile - Jul 11, 2017

Crash in MobilePacthingLibrary.cpp in the function static void OnInstallComplete FText ErrorText = MobilePendingContent->Installer->GetErrorText(); It looks like MobilePendingConte ...