HTML5 Black Screen When Launching on Chrome With Mobile HDR Disabled

UE - Platform - Mobile - Nov 2, 2017

When launching the project with Mobile HDR disabled it launches with a black screen. This occurs in 4.16.3, 4.17.2, 4.18, and Main, from my testing. Launching with Mobile HDR enabled works fine exce ...

Reimporting an FBX file via the import button does not make the import options appear

Tools - Nov 28, 2017

Reimporting an FBX file via the import button does not make the import options appear. Instead of allowing the FBX to reimport with new options, the FBX just re-imports. This issue is a regression. ...

Foliage is Offset When Streaming Existing Levels From World Composition

UE - World Creation - Worldbuilding Tools - Foliage - Jul 3, 2018

Streaming an existing level that used World Composition places the landscapes in the correct spot, but any foliage tied to that landscape is placed on the landscape tile at 0,0 instead of its corres ...

Motion Controller meshes do not track with Motion Controller position within VRMode

UE - Platform - XR - Feb 8, 2019

This is a regression from release 4.21.2 Motion controller meshes are present in the level, they just aren't tracking alongside the motion controls. Motion controls still function as intended othe ...

Crash in FVulkanLinuxPlatform

UE - Platform - Linux - Apr 17, 2019

Using the command in the repro steps on Linux will cause the Editor to crash and CrashReporter to pop up with a callstack. This behaves differently when tried on Windows with -vulkan. The project ...

Blueprint debugger: variable getter node displays wrong object's value

UE - Gameplay - Blueprint Runtime - Jul 28, 2023

After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...

Base Pass Instruction Count increases on Compile and Save, then resets upon reopening Material

UE - Graphics Features - Aug 24, 2015

Material Base Pass Instruction Count will change from a value established when plugging in components pre-compile to a higher value on post compile, but when the material is reopened the count rever ...

Changing the name of an Event Dispatcher's Input will not update existing nodes in Event Graphs and cause a compiler error

UE - Gameplay - Blueprint - Mar 5, 2015

Changing the name of an Event Dispatcher's Input will not update existing nodes in Event Graphs and cause a compiler error. The error text includes links that open the level tab rather than locating ...

Match3 crashes on device after locking and unlocking the screen on iOS

Tools - Aug 23, 2016

Aug 23 15:25:15 A6240 UnrealMatch3[987] <Warning>: Assertion failed: CommandEncoder.IsRenderPassDescriptorValid() [Link Removed] [Line: 700] Match3 does not resume after locking and unlocking the s ...

Access violation crash on startup after converting project

UE - Graphics Features - Jun 1, 2016

Access violation crash on startup after converting project User Description: We were using 4.10.4, and are trying to upgrade to 4.11.2. The project will convert and open fine the very first try, b ...