Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering

UE - Simulation - Physics - Destruction - May 10, 2025

Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering. Once the Remove-On-Break Cluster Crumbling effect is activated, there is a small delay between the disappearance of th ...

Lighting Only Affects Tilemaps From One Direction

UE - Graphics Features - Oct 9, 2018

Lighting only affects tilemaps from one direction.  Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.22 CL# 4435744 ...

Event Tick is not running once packaged

UE - Gameplay - Components - Jul 20, 2015

Event Tick works when it's running on Windows however once it's packaged or even launched onto all platforms, the event tick does not work as anticipated. This happens on all platforms. *Project ca ...

[CrashReport] UE4Editor_LevelEditor!FLevelEditorActionCallbacks::Paste_CanExecute() [leveleditoractions.cpp:1602]

UE - Gameplay - Blueprint - Jan 17, 2017

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: Assertion failed: GEditor->GetSele ...

Material Parameter Collections are not working on Android v 5 phones from 4.11

UE - Platform - Mobile - Feb 9, 2016

Material Parameter Collections are not successfully passing stored values into Materials when packaged for an Android Phone with an OS version of 5. Both version 4 and 6, correctly use the MPC.Test ...

Play Rate does not affect audio tracks

UE - Anim - Sequencer - Dec 30, 2016

Play Rate does not affect audio tracks. Slowing the play rate also causes the audio tracks to repeat with an offset. Note: This is working straight from a Sound Wave. If you use a sound cue, the ...

#ifdef and #ifndef have no affect in header files

UE - Foundation - Core - Mar 17, 2016

#ifdef and #ifndef have no affect when used in the header file of a class. Ex: #ifndef MYMACRO UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Test) float ANumber; #endif ANumber v ...

NetUpdateFrequency Affected by Global Time Dilation

UE - Networking - Jan 13, 2025

Changing the global time dilation in a multiplayer game affects the rate at which actors are considered for replication, and setting it to 0 will even cause replication to stop entirely (unless the ...

A C++ project with the name, "GearVR", will not build

UE - Foundation - Core - Jul 28, 2015

A C++ project with the name, "GearVR", will not build. This does not occur with content-only projects named GearVR. In 4.7.6 and 4.8.2, it fails during Compiling and an error message appears: Runni ...

Pressed and Normal Padding appears to have no affect on buttons in UMG

UE - Editor - UI Systems - Aug 24, 2016

Pressed and Normal Padding appears to have no affect on buttons in UMG ...