[CrashReport] Failed assert during BP compilation (trying to call a default delegate) (UE4Editor_KismetCompiler!FScriptBuilderBase::EmitFunctionCall() [kismetcompilervmbackend.cpp:1216])

UE - Gameplay - Oct 27, 2017

This is a trending crash coming out of the 4.18 release. User DescriptionsI tried to call an Event Dispatcher (which is assigned in the Level Blueprint) in the Construction Script of the Blueprint ...

UEnhancedInputUserSettings::LoadOrCreateSettings does not handle the changing of a settings class in the editor

UE - Gameplay - Input - Jun 3, 2024

proposed fix seems ok to me:  UEnhancedInputUserSettings* UEnhancedInputUserSettings::LoadOrCreateSettings(ULocalPlayer* LocalPlayer) { UEnhancedInputUserSettings* Settings = nullptr; ...

ISequencer::OnPlayEvent does NOT fire at the end of playback in Sequencer editor

UE - Anim - Sequencer - Jul 8, 2022

ISequencer :: OnStopEvent is executed when pause, but not when playing to the last frame and stopping automatically. This is because OnStopDelegate.Broadcast(); is only in FSequencer::Pause(). When ...

Crash Occurs When Creating a Blueprint From a Nav Link Proxy

UE - Gameplay - Blueprint - Sep 27, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...

Android build fails with GPU Lightmass plugin enabled

UE - Platform - Mobile - Nov 5, 2020

Packaging for Android fails with the GPU Lightmass plugin enabled. A customer reported this and I was able to successfully repro it, however my callstack was different. I'm attaching my logs and cal ...

EDITOR: High Resolution Screenshot: Unable to capture high res shots in game or during cinematics

Tools - Sep 2, 2014

BRANCH: //depot/UE4/Promotable-CL-2281016 CHANGELIST: 2281016 BUILD TYPE: P4 PLATFORM: Windows FREQUENCY: 3/3 DESCRIPTION: Unable to capture High Res shots in game or during cinematics REPRO STEPS: ...

Crash when enabling dynamic branch on static switches in Post Process Materials

UE - Rendering Architecture - Materials - Jun 28, 2023

[Link Removed] Some functions to access parameters don't take into account the newly added runtime static switch parameters. It should be straightforward to fix these up: void UMaterialInstance:: ...

[CrashReport] UE4Editor_CoreUObject!HandlePlaceholderScriptRef() [class.cpp:1416]

UE - Gameplay - Blueprint - Nov 10, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...

Crash When Changing to Landscape Paint Tool With a Material Function for the World Position Offset of the Landscape Material

UE - Graphics Features - Feb 25, 2019

Crash on switching to landscape/paint tab when using a landscape material that has a material function hooked onto the WorldPositionOffset. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL ...

Invalid array length error launching QAGame onto HTML5

UE - Platform - Mobile - Mar 22, 2017

Firefox 32-bit Version 52.0.1 This error also occurs in MainRangeError: invalid array length[Learn More] 0943e4e3-83fc-4463-accc-9fd15fd7df6c:157:9 processPackageData blob:http://localhost:53501 ...