Collision outcome is different between PIE and Mobile Preview/Packaged Project.

UE - Simulation - Physics - Mar 25, 2015

When playing the user's project in editor vs Packaged, there has been different results for the enemies collision. When playing in PIE, you are able to fly through the enemies with no issues. When p ...

Maya Generated FBX Files Fail to Import Properly into UE 4.10

Tools - Nov 24, 2015

The same animation FBX file generated from Maya will import correctly into UE4.9 but incorrectly into UE4.10. Moreover, if you generate an FBX from the animation that was successfully imported from ...

AR Core - Apps with Candidate image result in black screen on first launch

UE - Platform - XR - Jan 20, 2020

On first launch of an AR app with Android the camera passthrough will render black. This also happens if an app is minimized and re-opened. This will not repro if there is no candidate image assign ...

BinaryConfig cannot be created in packaging if there is a space in the file path name.

UE - Foundation - Cpp Tools - Automation Tool - Jun 13, 2022

Error log is output when including spaces when packaging binary configurations. The following log contains the string "Test Test" with spaces in the file path. ERROR: Failed to copy D:\Projects\Te ...

Crash in Middle of PIE with Level sequences and MRQ running

UE - Anim - Runtime - Mar 6, 2023

Repro Rate: 5/5 Tested this a few times and the crash seems to come in at different intervals, some had the prestreaming almost finished, then would crash. Working on a video to show crash to add ...

Problem with material layers using interpolator nodes

UE - Rendering Architecture - Materials - Jun 7, 2024

The Vertex Interpolator Material Expression appears to collapse separate instances from separate Material Layers, leading to visual artifacts when used. Also tested on UE5_Main, CL: 34200103 ...

Material functions should be able to output the same data as it can accept as inputs

UE - Rendering Architecture - Materials - Sep 30, 2024

Material Functions cannot output Texture Objects or Booleans. This seems to be because the Material Editor believes that the outputs are Floats, and forbid connections to inputs that take Textures ...

Selecting multiple platforms to package in UFE may result in not all of the selected platforms being packaged

UE - Platform - Console - UnrealFrontend - May 9, 2016

A user stated that when trying to use UFE to package for WindowsNoEditor, WindowsServer, LinuxNoEditor, and LinuxServer, not all of the platforms were actually being packaged. LinuxNoEditor was bein ...

Unexpected behavior with Broken Constraint and Physics Blend Weight

OLD - Anim - Jan 13, 2017

Looks like the position of the bone according to the animation is still being accounted for somehow, because the collision seems fine (when using pxvis collision). ...