Camera Switcher Import option not functioning properly

UE - Anim - Sequencer - Oct 22, 2019

In UE 4.20 we got a feature that let you import a FBX file that contains cameras with a camereaswitcher to create a "camera cut track" within sequencer. From the release notes of 4.20: https://docs ...

Hair shading emits light when Lumen is enabled

UE - Graphics Features - Jun 6, 2022

This artifact does not occur when Lumen is disabled. Also, moving Roughness closer to 1 will reduce the effect. ...

CompileAllBlueprints crashing on blueprint function with a delegate input.

UE - Gameplay - Blueprint Compiler - Aug 19, 2022

In some scenarios, FPropertyDelegate::SignatureFunction can point to freed memory after a garbage collection run. This appears to be more common when running the CompileAllBlueprints commandlet. ...

Bug: Replace With Notify option not fully functional

UE - Anim - Runtime - Mar 7, 2025

When you select multiple notifies and attempt to replace them with another notify using "Replace with Notify", it will sometimes replace other random notifies and not the ones you have selected. ...

"Filter Recursively" option in the Content Browser does not function

UE - Editor - Applied Usability - Jun 27, 2025

Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level

UE - Graphics Features - May 14, 2025

Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...

Changing Blueprint Interface's Const Status Doesn't Update Blueprints its Already Implemented In

UE - Gameplay - Blueprint - Nov 8, 2016

Implementing an interface that contains const functions and later attempting to change these functions to be non-const does not update the status of the functions inside of the actor they are implem ...

Transition ratio getter function not correct for interrupted transitions.

OLD - Anim - Apr 7, 2016

The transition ratio getter simply uses ElapsedTime/Crossfade for the alpha on the transition. Normally this is sufficient, although if you blend between two states A and B such that you interrupt ...

Nativize Blueprints removes blueprint functionality in packaged project

UE - Gameplay - Blueprint Runtime - Jun 15, 2016

If a project is packaged with Nativize Blueprints enabled, blueprint event graph information does not run. ...