Network Delay with RPC Functions/OnRep Properties

UE - Networking - Jun 5, 2017

When attempting to call a RPC (NetMulticast, in this case) or use an OnRep_ Property, there seems to be a delay between setting the variable and it being replicated. In 4.15, this was around two t ...

Increase in Engine Stats for large amounts of Hierarchical Instanced Static Mesh Components

UE - Graphics Features - Apr 18, 2017

Increase in Engine Stats for large amounts of Hierarchical Instanced Static Mesh Components User Description: We are having performance drops of almost 5ms in 4.15 when using "Hierarchical Instanc ...

Unreal Studio: Multi User Viewer Template Menu: Next Arrow Bug

UE - Anim - Sequencer - Oct 11, 2018

"There's a bug with the menu where you cant get to the next step (server browser or host) when you have a VR headset plugged and available. The "Next_Btn" button is greyed out on the last step. You ...

Destroying Actor via RepNotify After Seamless Travel Causes Pending Kill Warning

UE - Networking - Dec 15, 2016

Attempting to destroy an actor via a repnotify after seamless travel is causing the actor to fail to be destroyed because of a pending kill warning: [2016.12.15-19.10.13:936][574]LogNetPackageMap:W ...

SceneDepth Materials Rendering Black

UE - Graphics Features - Jun 2, 2017

Scene Depth materials are rendering completely black. See the attached screenshots for comparisons between 4.15.3 and 4.16. This issue did not occur in 4.15.3, this is a regression. ...

Unable to open UE4Editor on Linux - Bad hlslcc header found

UE - Platform - Linux - Nov 4, 2015

UE4Editor does not open on Ubuntu 15.10 due to the following error: [2015.11.04-16.19.35:974][ 0]LogOpenGLShaderCompiler:Error: Bad hlslcc header found! Missing '#'!Error in `./UE4Editor': free(): ...

[CrashReport] Crash occurring in Phonon::FPhononReverb::ProcessMixedAudio

UE - Audio - Apr 27, 2017

This is an early trending crash coming out of the 4.16 Preview. Users have not provided any additional information. From Log:/Game/VirtualRealityBP/Maps/UEDPIE_0_StartupMap.StartupMap (0.006787s) ...

[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GetParentLayout() [detailcategorybuilderimpl.h:166]

Tools - Aug 22, 2017

This is an intermittent crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to [Link Removed], fixed i ...

Editor crash when adding elements to blueprint Set/Map

UE - Gameplay - Blueprint - Mar 22, 2017

Adding multiple element to TMap / TSet variable at once with a for loop causes the editor to lock up / crash (respectively). Regression: No - Map & Set variable types not available prior to 4.15 ...

Editor Drop Down Menus become out of place when moving across a small screen to a larger display

UE - Platform - Apple - Feb 13, 2015

In a Mac environment with where a MacBook Pro 15" retina display is used in combination with a larger 25" display "traditional resolution" the menus will drop down as expected on where the editor is ...