Sun is rendered badly or not showing on mobile devices.

UE - Platform - Mobile - Jan 27, 2015

When you deploy the First Person Template to a mobile device, the sun will appear badly rendered or not rendered at all. Tested on iPhone5S, iPad Air, GalaxyS3 Mail, Nexus 6, iPad Air 2, Nexus 5, G ...

Forward Rendering Lightmap Density view flicker

UE - Graphics Features - Aug 20, 2019

The shaders flicker when in Lightmap Density viewmode after enabling Instanced Stereo Rendering in Project Settings > Engine > Rendering > VR  Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), ...

Replicated Movement doesn't replicate itself to all clients on Dedicated Server

UE - Simulation - Physics - Jul 31, 2018

This is a regression from 4.19.2 (CL-4033788). The pawns aren't replicating their own movement on their clients, but they are replicating on the clients of other pawns. This was reported and teste ...

Crash occurs when using Random Node and Branch within Sound Cue

UE - Audio - Aug 22, 2016

A crash occurs when playing a Sound Cue with Random node used in conjunction with a Branch node. In the original report the user specifically mentions the crash does not occur if you have not opene ...

Variable Names with a Leading Space Cannot be Copied

UE - Gameplay - Blueprint - Nov 9, 2015

If you begin a variable name with a space, attempting to copy any instances of that blueprint will prompt an error warning: "Unknown property in <BlueprintName>: <VarName> = <Value>. Found in 4.9.2 ...

Sphere Object Not Firing Hit Events

UE - Gameplay - Mar 14, 2016

When moving a sphere using Add Actor World Offset, hit events on that sphere are not fired. However, doing the same thing with a cube causes hit events to fire off as expected. When you enable grav ...

[Interchange][gltf] Imported animation are all 1 frame long.

UE - Editor - Content Pipeline - Import and Export - Jan 27, 2025

All the imported animation only contain one frame. If the file contains in archive are imported in a gltf web viewer we can see animation are playing.  [Link Removed] [Link Removed] https://foru ...

Having a project for iOS set to only allow Landscape Right with show incorrectly on an iOS device

UE - Platform - Mobile - Jan 23, 2015

When you are packaging and deploying your project to an iOS device, If Supports Landscape Right orientation is the only Orientation checked, It will show incorrectly on the iOS device. Tested on an ...

Custom Stencil Buffer Visualization Doesn't Render Custom Stencil Depth

UE - Graphics Features - Feb 6, 2020

The Buffer Visualization (Custom Stencil ) doesn't render assets that have "Render CustomDepth Pass" enabled. Found in 4.24.2 CL#10758860 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11223911 ...

Keep Simulation Changes Not Saving Values After Physics Simulation

UE - Gameplay - Blueprint - Oct 1, 2015

Simulating your level and then attempting to use the Keep Simulation Changes option on an actor that has simulated physics gives the No Properties Copied error. Occurs in 4.9.2 binary and Main CL ...