BSP brushes get Clipped or Disappear relative to the Surface Normals of a nearby Brush when Deleting/Flipping Faces

UE - LD & Modeling - Modeling Tools - BSP - May 1, 2017

While testing this issue it was interesting to discover how the surrounding BSP's were affected. They seemed to clip/disappear according to the surface normals of the deleted brushes. There is a si ...

Packaging fails when Online Framework Plugin is enabled in a Binary build.

UE - Foundation - Cpp Tools - Plugin System - Nov 29, 2017

Enabling the Online Framework Plugin in a Binary build of the editor (download from the Epic Games Launcher) causes packaging attempts to fail due to a file that is missing. This does not occur in s ...

Missing Triangles on scaled MetaHuman assets with Nanite enabled

UE - Graphics Features - Nanite - Feb 19, 2025

Additional information: only happens when all three conditions are true: the camera is very close to the character, the MH is Nanite, and a scaled mocap animation is appliedmaterial is opaque, shows ...

Reflections Rendering Incorrectly in SM4

UE - Graphics Features - Dec 7, 2017

Reflections are rendering incorrectly in Rendering Preview Level SM4 in 4.18, but were working as expected in 4.17. This is a regression. When I reproduce the issue, I get results similar to issue ...

Packaging with Steam VR plugin disabled requires an IDE

UE - Platform - XR - Jul 20, 2017

Disabling the SteamVR plugin in a Blueprint-Only project causes the packaging process to require an IDE to complete, as it requires compilation. Regression?: Yes This did not occur in 4.16.2 Note: ...

Detail Panel Favorites cause many settings to be duplicated or shown when they aren't normally

Tools - Dec 20, 2017

Enabling the "Enable Details Panel Favorites" experimental setting causes some details that were not previously shown to appear. In version 4.18 and onward, it also causes these new details to have ...

EditCondition specific does not prevent values from being changed.

Tools - Mar 9, 2017

1) Using the Meta specifier EditCondition will gray out the property box so that it cannot be clicked, but using tab from another property box will place the cursor inside the grayed out box. 2) V ...

Control Rig parameters don't function in the AnimBP after the Editor restarts

UE - Anim - Rigging - Control Rig - Jun 14, 2020

Control Rig parameters don't function after editor restarts. Also the default values don't function and you need to use an input instead of directly editing the values of the pins. You can work aro ...

Using Alt+Click to break Transition node connections cannot be undone using the Undo command

OLD - Anim - Nov 28, 2016

Using Edit->Undo or Ctrl+Z has no affect after breaking using Alt+Click to break the connection of transition nodes. In the My Blueprint tab, extend Graphs->AnimGraph Regression: No - Same behavio ...

Sampling Scene Texture in Custom Expression in Post Process Material Breaks Viewport UV

UE - Graphics Features - Apr 6, 2018

This issue does not occur in 4.18.3 but does occur in 4.19 and Main, making this a regression. Per user: I suspect there's an issue with custom expressions and sampling coordinates. It appears onc ...