Custom fallback mesh LODs for Nanite-enabled meshes not working

UE - Graphics Features - Sep 15, 2025

Creating a custom fallback mesh with LOD for Nanite-enabled meshes with multiple materials, results in mesh LODs with errors. As the number of material sections (material slots) decreases with coars ...

UMG curve editor values are set to 0 when dragging a set value

UE - Editor - UI Systems - Jul 10, 2015

An example of this issue would be that after setting the color and opacity setting along the time line and then trying to click and drag that key frame it will set the value for the currently select ...

Project Launcher spams console with "LogStats:Warning: MetaData mismatch..."

UE - Foundation - Core - Jul 27, 2016

It doesn't appear to matter what project or template you're launching with, or what settings you use in the ProjectLauncher. There are two threads it seems to complain about as reflected in this s ...

Merge Actors Merge Materials Missing Visibility Collision

UE - World Creation - Worldbuilding Tools - Merge Actor - Nov 1, 2023

FInternetAddrBSDIPv6::SetIp doesn't handle all valid IPv6 formats

UE - Networking - Sep 29, 2016

Currently FInternetAddrBSDIPv6::SetIp(const CHAR* InAddr, bool& bIsValid) does not handle all valid formats of IPv6 addresses. Need to rework the function to be more robust, and properly handle all ...

Crash When server traveling from one level and then back again after calling a multiclass event (using Play as Listen Server)

UE - Gameplay - Blueprint - Apr 20, 2018

A crash occurs when switching back and forth between levels when using seamless travel. This happens if a multicast was called and if it contains a member variable. ...

SceneCaptureComponent2D Anti-Aliasing not working unless Post-Processing flag is toggled OFF and back ON again

UE - Graphics Features - Aug 28, 2019

SceneCaptureComponent2D Anti-Aliasing does NOT work unless Post-Processing hidden show flag is toggled OFF and back ON again. This state persists only during Editor time. Upon restarting the Editor ...

Enable high quality Gaussian DOF cause black screen on Android(S6)

UE - Platform - Mobile - Nov 23, 2017

This is only happen on Android, no problem on IOS ...

Crash reimporting Skeletal Mesh that has an extremely high amount of LODs

Tools - Nov 14, 2017

I have attached the project I used to repro this as well. All you should need to do is reimport twice on the untitled skeletal mesh and it should crash ...

Sync'ing an asset through the editor does not update the asset until the project restarts

If an asset file is checked out / edited in source control and checked back in, others will see the yellow exclamation mark to indicate that there is an update to the asset but choosing to sync does ...