[daydream] Black screen with FirstPersonTemplate and 4.15P4

UE - Platform - XR - Feb 17, 2017

https://answers.unrealengine.com/questions/561763/daydream-black-screen-with-firstpersontemplate-and.html Any msaa setting except none results in a black 3d scene on daydream. ...

Character Mesh transform replication break on clients

UE - Networking - Jul 3, 2017

In 4.16, character mesh on clients seem to be in the different location than the server. So far this happens when the player start is above the ground. This does not happen when network Smoothing ...

DuplicateObject does not keep settings from the object duplicated

UE - Foundation - Core - UObject - Jul 24, 2017

When using DuplicateObject, some aspects of the copied object (such as component transform) are not duplicated to the copy. Regression: Yes - DuplicateObject behaved as expected in 4.15.2 Working - ...

[CrashReport] Linux Crash in FActiveSound::GetWorld()

UE - Platform - Linux - Aug 11, 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: SIGSEGV: invalid attempt to write ...

Incorrect box collision on negatively scaled mesh

UE - Simulation - Physics - Jul 23, 2018

If you have a mesh with a rotated box in its simple collision primitives, that box won't be in the correct position if you scale the mesh by -1. This issue was reported in 4.20 (CL-4212847) and rep ...

Alpha Compression Artifacts

UE - Graphics Features - Nov 23, 2018

Confirmed in Main 4.22 @ CL 4586854 in 4.21 Alpha looks to be about 1 pixel larger than other channels in certain parts of the texture "The issue is not improved by changing compression settin ...

Unable to change Blueprint Child Variable values in Python

UE - Editor - Workflow Systems - Dec 20, 2018

Using the Python function unreal.SystemLibrary.set_bool_property_by_name() to change the default variable values of a child Blueprint do not work as intended. Tested in 4.20.3 (CL - 4369336), 4.21. ...

FBX skeletalmesh animation import use an integer for sample rate

UE - Editor - Content Pipeline - Import and Export - Sep 11, 2020

Integer sample rate is not playing well with 23.976(NTSC/24) sample rate, the curve get resample at 30Hz in that case and we loose precision. We need to support FFrameRate sample rate to get accura ...

DistanceToNearestSurface node does not work when r.DistanceFieldAO is disabled

UE - Rendering Architecture - Materials - Jul 16, 2025

The problem seems to be that the bUsesGlobalDistanceField flag in the ShouldPrepareGlobalDistanceField() function checks for usage on the material, but it doesn't seem to take effect. The material u ...

Crash When Changing to Landscape Paint Tool With a Material Function for the World Position Offset of the Landscape Material

UE - Graphics Features - Feb 25, 2019

Crash on switching to landscape/paint tab when using a landscape material that has a material function hooked onto the WorldPositionOffset. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL ...