A Client connected to a Server that then destroys the session and rejoins will be disconnected after a short time

UE - Networking - Dec 8, 2015

A Client connected to a Server that then destroys the session and rejoins will be disconnected after a short time. Unable to reproduce in a new project, however this has been reported multiple times ...

DDC corruption creates incorrect pasted topology when using Landscape Copy / Paste Tool

UE - LD & Modeling - Terrain - Landscape - Apr 3, 2017

I noticed that the copy and pasted section of the level was being painted while I was painting a nearby section of the level. This weird yellow color appeared and I undid and redid the paint to make ...

FBX Import for Skeletal Meshes normals not correct

UE - Graphics Features - Jan 12, 2016

When importing a mesh as skeletal mesh and using any of the MikkTSpace or option to "Import Normals and Tangents" will cause the normals to import incorrectly. If using the Compute Normals or Import ...

Skeletal Meshes have physics collisions lag

UE - Simulation - Physics - Oct 2, 2019

Skeletal mesh's physics collision lag behind the actual mesh. It didn't matter if there was just a root bone or multiple bones/constraints. This doesn't happen when using static meshes. The effect ...

Actor moves between levels when using Convert Actor

Tools - Jan 9, 2017

Using Convert Actor when the wrong level is selected can cause the actor to move levels. This doesn't seem to happen with every actor type but is 3/3 reproducible using the steps provided. User Des ...

Clicking the tutorial button in the Blueprint editor while the tutorial alert in the main editor is still displayed will crash the editor

Tools - Jul 13, 2015

Clicking the tutorial button in the Blueprint editor while the tutorial alert in the main editor is still displayed will crash the editor. Reproduced in 4.8.1 and Main (//depot/UE4/Promoted-CL-2605 ...

Packaged games do not display PlayerName correctly using Steam OSS

UE - Online - Jan 2, 2016

Packaged games do not display PlayerName correctly using Steam OSS. Does not occur in Standalone. Test project attached. To test, package for Development > Win64. When run (with the Steam client op ...

[CrashReport] UE4Editor_Slate!FDelegateBase::Unbind()

UE - Editor - UI Systems - Slate - Jul 24, 2017

This is a common crash affecting users in 4.16. User Descriptionstrying to import a texture D: Source Context 137 /** 138 * Unbinds this delegate 139 */ 140 ...

Startup Movie renders as a black screen on some Android devices

UE - Platform - Mobile - Jun 29, 2018

While testing on the 10661_Xiaomi Mi 5C the Startup Movie would occassionally render as a completely black screen while still playing the audio from the Startup Movie sample. This was the most consi ...

Forward Rendering shading flicker on some assets set to Static

UE - Graphics Features - Jan 18, 2017

When forward shading is enabled some assets will have a shadow flicker along their face geometry. It has a similar look of z-fighting with polygon faces. This issue does not happen in Deferred rende ...