Blueprints with inherited Macros cannot save

UE - Gameplay - Blueprint - Feb 27, 2015

Blueprints with inherited Macros cannot save. Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917) ...

Garbage Collection crash on Compile attempt

UE - Foundation - Core - Nov 6, 2015

Attempting to compile anything in the editor (blueprint, widget, level bp, etc) will cause the editor to crash. Project Link: [Link Removed] Crash Reporter: [Link Removed] Note This has only been ...

Opening particle system crashes editor

UE - Graphics Features - Jan 27, 2016

Opening a specific particle system crashes the editor. If the particle system is used within a level and the level is played, the editor will crash with no callstack. Logs are attached. Frequency: ...

Disabling 'Use Landscape Lightmap' option Skewing Procedural Foliage Instances

UE - LD & Modeling - Terrain - Landscape - Oct 24, 2016

Disabling the 'Use Landscape Lightmap' when using procedural foliage, will skew the placed instanced meshes. Regression? Yes, this issue did not occur in the 4.13.1 release. ...

Blueprint Viewport displays bright green emissive for all objects

UE - Gameplay - Blueprint - Jul 17, 2017

When opening a new blueprint for the first time Adding any static mesh component (Engine content or User created) causes the mesh to display with a bright green emissive. This issue occurs only in t ...

Duplicating a Sequencer causes events from the original sequence to fire when the second Sequencer is ran

UE - Anim - Sequencer - Nov 13, 2018

When using a Sequence that is a duplicate of another, without changing the event names, the duplicate Sequence will still fire off the event from the original even if the values are changed. Changin ...

Mover character flickers downward while crouched and moving every so often

UE - Gameplay - Player Movement - Mover - May 8, 2025

Repro Rate 5/5 Packaged onWindows - 10 - Enterprise - L3864 Processor: AMD Ryzen Threadripper PRO 3975WX 32-Cores 3.50 GHz RAM: 128 GB GPU: NVIDIA GeForce RTX 3080 GPU Driver Version: 572.83 ...

Execute Console Command r.SetRes Fullscreen breaks Dynamic Skylights when tied to Event BeginPlay

UE - Graphics Features - Apr 6, 2017

Using the Execute Console Command 'r.SetRes 1920x1080f' directly with an Event BeginPlay node within blueprints, any Stationary/Movable Skylighting information is no longer visible. A simple workar ...

Adjusting Default Light Settings for Atmospheric Fog causes Crash

UE - Graphics Features - May 2, 2016

Adjusting default light settings in the Color Picker palette for atmospheric fog causes the engine to crash in UE 4.12 Preview Regression: This does not occur in UE4.11 ...

Skewed Rotation values from camera actors in print string

UE - Gameplay - Sep 25, 2017

When using the camera actor and modifying the rotation values, the values made in the print string do not seem to match the actual values of the camera's rotation. The values appear to be close, but ...