Setting Physics Blend Weight to anything between 0 and 1 causes erratic behavior

UE - Simulation - Physics - Jul 27, 2015

If the user simulates all bodies, and then sets the physics blend weight to a decimal value between 0 and 1, the skeletal meshes will spin out of control. This doesn't happen if the physics blend w ...

Investigate crash reported with 4.16 on Sony Xperia Z3 running Marshmallow

UE - Platform - Mobile - Jun 28, 2017

A user has reported a crash that is occurring on his Sony Xperia Z3, https://answers.unrealengine.com/questions/667998/4161-dev-build-app-crashes-on-start-unfortunately.html The user has attached ...

UnrealMathTest fails when compiled with VS2019

UE - Foundation - Cpp Tools - Oct 10, 2019

A crash or breakpoint is triggered when building UE4 with Project Files generated with -2019. Typeinfo.h was changed in MSVC v14.23 to just be typeinfo. ([Link Removed]) There is a pull request t ...

Properties not converting when using Core Redirects from BP to C++ class

UE - CoreTech - UObject - Mar 15, 2021

Note: I also tried with different variables names and property redirects. It's also hits and misses.  I tried with a bool and an integer. Only the integer will convert but not for all instances.. ...

Runtime import, does not generate proper materials

UE - Editor - Content Pipeline - Datasmith - Importer - Sep 1, 2021

The models are darker than the one loaded directly in editor Left runtime, right editor [Image Removed][Image Removed] [Image Removed][Image Removed] You can find some details here from a udat ...

Anim Notify States are ended when CustomTimeDilation is set to zero

UE - Anim - Runtime - Oct 12, 2022

UDN link: https://udn.unrealengine.com/s/question/0D54z00008BEDfJCAX/set-actor-time-dilation-to-0-during-a-animation-notify-state-cancel-it?fromCase=1 Notify gathering functions (e.g. UAnimSequence ...

[Soundfield Submix] - Output is silent when routing sound to Unreal Ambisonics and then to Resonance

UE - Audio - Submixes - Dec 8, 2022

According to the official docs https://docs.unrealengine.com/4.27/en-US/WorkingWithAudio/Nativesoundfield/ an ambisonic submix can be rendered to Resonance or Oculus; however when doing so, while th ...

Unable to create blueprint class from the 'All Classes' tab with only keyboard input

Tools - May 7, 2015

If you go to create a new blueprint class and go to the all classes dropdown menu, search for a class name and then attempt to select it by pressing the down arrow to the selection and hitting enter ...

Standalone Material Function Instance creation results in crash

UE - Rendering - Architecture - Materials - Mar 2, 2023

Coming from UDN https://udn.unrealengine.com/s/case/5004z00001mDBzzAAG/material-instance-asset-creation-workflows?fromCase=1 Either standalone MFI creation should work just like MaterialInstances, ...

GoogleARCoreJavaHelper functions are not correctly exported publicly

UE - Platform - XR - Oct 31, 2018

The jni functions in GoogleARCoreAndroidHelper.cpp are not correctly exported, when we tried to build a Test project it failed with this exception:  java.lang.UnsatisfiedLinkError: No implementatio ...