Unreal Engine Issues
Unreal Engine Issues
Unfocused Standalone window has reduced performance
UE - Rendering Architecture - RHI - Aug 25, 2020User description: When I run two windowed standalone instances to test multiplayer, the unfocused window gets about 2-5 fps...but if I focus on it, smooth 120fps, yet the opposite screen is now onl ...
iOS fails during build step with OSS Facebook plugin enabled due to spaces in filepath
UE - Platform - Mobile - Feb 8, 2019When a user tries to package or launch onto an iOS device they will fail at the build step due to:[3/8] sh Unzipping: /Users/Shared/Epic Games/UE_4.22/Engine/Source/ThirdParty/Facebook/IOS/FacebookS ...
Create Session does not work in a packaged game from any project that has used C++
UE - Networking - Dec 28, 2015After adding C++ to a content-only project, Create Session no longer works in a packaged game. The following warning appears in the log: LogScript:Warning: CreateSession - Invalid or uninitialized ...
[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GetParentLayoutImpl() [detailcategorybuilderimpl.h:168]
Tools - Aug 22, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: IsValid() [Link ...
Sequencer : Attaching a Possessable to multiple Spawnables across multiple cuts causes incorrect location restoration
UE - Anim - Sequencer - Nov 12, 2021Regression No, according to affects versions 4.27 and 4.27.1 The restore process proceeds in the following order : 1. Remove spawnable actor in first cut (no effect because the actor is already r ...
[CrashReport] Crash in TerminateOnDeviceRemoved() - DXGI_ERROR_DEVICE_HUNG
UE - Graphics Features - Aug 29, 2016Error message: Fatal error: [Link Removed] [Line: 176] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG') Source Context: 161 162 const TCHAR* Reas ...
[CrashReport] UE4Editor-UnrealEd.dylib!FEditorModeTools::MouseMove()
UE - Platform - Apple - Nov 21, 2017This is an infrequent Mac crash. Users have not provided any descriptions. Callstack from LogGeneratedClass '/Game/Maps/World.World_C' with ClassGeneratedBy '/Game/Maps/World.World:PersistentLevel. ...
[CrashReport] UE4Editor_CoreUObject!UObject::CreateDefaultSubobject() [obj.cpp:118]
UE - Foundation - Core - UObject - Apr 4, 2017Was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Fatal error: [Link Removed] [Line: 117] No o ...
Blueprint diff tool does not highlight differences when a change is made to a property in a component
UE - Gameplay - Blueprint - Jun 20, 2018When making changes to a property in a component of a Blueprint, those changes are not highlighted when looking at the changes in the Components section of the Blueprint Diff tool. ...
[AI] Editor crashes when editing values of an FInstancedStruct's TArray inside of a BP
UE - AI - Jun 30, 2023While using a custom struct that contains a TArray member variable with FInstancedStruct, you cannot edit it in the editor without a crash. Other structs and types work as expected even if they deri ...