Split Pins in the AnimGraph become disconnected after Editor Restart

OLD - Anim - Sep 27, 2016

Split Pins in the AnimGraph of an Anim Blueprint become disconnected after Editor Restart Regression: YES. This does not occur in 4.12.5 CL:3039270 I also tested this in latest 4.13 Releases CL:3 ...

Dedicated Server crashes when client connects in particular circumstances

UE - Networking - Jun 9, 2016

Running a dedicated server with the setup in this fairly simply project causes a crash when a client connects. I'm unaware of the actual cause but getting the reproduction was all I could do. Logs ...

Hot Reload fails when project code class that derives from a plugin code class is modified

UE - Foundation - Cpp Tools - Hot Reload - Oct 11, 2018

Hot Reloading fails in 4.21 if a project code class that derives from a plugin code class is modified. The Editor appears to be looking for a corresponding Hot Reload .dll for the plugin, even thoug ...

Ensure when adding more than one camera to world in VR mode

UE - Editor - Workflow Systems - Jun 13, 2017

Ensure condition failed: Lhs.CurrentNum == Lhs.InitialNum [Link Removed] [Line: 197] Array has changed during ranged-for iteration! Ensure occurs after dragging in multiple cameras into the world i ...

"Build" button causes "Validation failed" and breaks references of meshes in Sublevel according to a prescribed procedure

UE - LD & Modeling - Modeling Tools - BSP - Feb 9, 2019

A licensee reported that "Build" button causes "Validation failed" and breaks meshes in a Sublevel according to a prescribed procedure. The process is quite complicated, but I can 100% reproduce thi ...

GI not coming in with lighting build data when lighting built outside of main scene

UE - Graphics Features - Mar 27, 2024

Volumetric Lightmaps are not shared between Persistent maps that have the same sublevels. Also observed in Release-5.4, CL 32500436 ...

Compiling blueprint with anim bp crashes editor in MathExpr exec

UE - Gameplay - Blueprint - Jan 30, 2016

Compiling a player character blueprint that is tied to an anim bp crashes the editor. Frequency: 2/2 Crashreporter: N/A ...

MatineeFightScene too dark due to tonemapperfilm changes

Docs - Samples - Jan 31, 2017

MatineeFightScene is heavily dependent on the old Film settings in the tonemapper. Since 4.15 made changes to this, the scene is extremely dark. The project needs r.TonemapperFilm=0 added so that i ...

FSlateApplication::OnControllerButtonPressed/Released removed causing input plugins to no longer work

UE - Editor - UI Systems - Slate - Dec 8, 2014

The functions OnControllerButtonPressed/Released using FKey were deleted for 4.6. This leaves plugin authors no way of propagating key presses from their plugin in to the input system. ...

>1ms increase in frame time with showflag.translucency , despite minimal translucency in the scene

UE - Graphics Features - Sep 2, 2021

Licensee reports this change, and can confirm a very rough similarity observed in a template project in 4.27: [Image Removed] ...