Changes in Blueprint Properties not Updated in placed Instance

UE - Gameplay - Blueprint - May 16, 2016

When changing some properties in a Blueprint, the changes are not reflected in placed instances of the Blueprint. I've included repro steps from the licensee who reported this. I verified these step ...

Crazy camera when zooming in/out the Sequencer

zComponent - Archive - Mar 22, 2024

If you add Static Mesh (cube) in this Level Sequence and click on it in Sequencer, you can observe the Spline Path that the cube is following is changing its shape when keys in Sequencer are zoomed ...

Enabling Wireframe Mode along with HDR (EyeAdaptation) Visualization crashes the Editor

UE - Graphics Features - May 29, 2025

In the Viewport, enabling Wireframe Mode (ALT+2) along with HDR (EyeAdaptation) Visualization crashes the Editor. I've tested different versions and this issue is not present on 5.0, but it reproduc ...

[CrashReport] UE4Editor_SteamVR!FSteamSplashTicker::Tick() [steamvrsplash.cpp:52]

UE - Platform - XR - Aug 3, 2018

No user comments on crash group ...

Bloom intensity broken with Post Processing Material replacing Tonemapper

UE - Graphics Features - Sep 25, 2020

When replacing the Tonemap using a Post Process material, the Post Process Volume's Bloom Intensity can only be turned on or off, without varying degrees of effect. Reported in version 4.25.3(CL 1 ...

Flickering shadows/GI when DrawMaterialToRenderTarget is called per tick in PIE

UE - Rendering - Architecture - Jul 11, 2024

When DrawMaterialToRenderTarget function is called on tick and actors are spawned in game, the lumen shadow/GI visually flickers. Debugging shows that the lumen screen probes are flickering as well. ...

Montage keyframes calculation error

OLD - Anim - Apr 28, 2016

Animations are not showing proper length when converted to Montage. Up to 98 frames (AFAIK) when converted to Montage, the Montage will show the correct number of keys. However, a 100-frame anima ...

Particle light module doesn't work if forward rendering is enabled

UE - Graphics Features - Dec 13, 2016

There's a UDN link below, the second images in the thread shows this problem. It should be noted that the light module will cast light in forward rendering if "High Quality Lights" is checked in the ...

Asset referencing error on a Python Pipeline Asset

UE - Editor - Content Pipeline - Import and Export - Sep 18, 2023

[Image Removed] ...

Using a Shading Model node set to Unlit results in an invalid material with FromExpression domain

UE - Rendering - Architecture - Materials - Feb 29, 2024

Create a materialSet its domain to From ExpressionRecreate the node graph as in the screenshot Note that the preview sphere is black. ...