Unreal Engine Issues

Crash when using "Convert to Variable Curve"

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.

Crash When Trying to Draw a Material to a Render Target where Source Material is using AlphaComposite + Unlit Mode

The issue occurs when trying to Draw a Material to a Render Target where the source material is using AlphaComposite + Unlit mode. This is an attempt at the solution proposed by Ryan Brucks to allow ...

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

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

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

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

[CrashReport] Linux crash - FVulkanCommandBufferManager::WaitForCmdBuffer

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

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

Crash when using automated groom import

UDN customer reported that using automated groom import through Blueprint was crashing. This can probably be reproduced with a Python script using an asset import task with the automated flag set to ...

Crash when force deleting Dataflow Graph

When force deleting a dataflow graph with the dataflow graph editor open it will crash the engine. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binar ...