Problem with material layers using interpolator nodes

UE - Rendering Architecture - Materials - Jun 7, 2024

The Vertex Interpolator Material Expression appears to collapse separate instances from separate Material Layers, leading to visual artifacts when used. Also tested on UE5_Main, CL: 34200103 ...

Material functions should be able to output the same data as it can accept as inputs

UE - Rendering Architecture - Materials - Sep 30, 2024

Material Functions cannot output Texture Objects or Booleans. This seems to be because the Material Editor believes that the outputs are Floats, and forbid connections to inputs that take Textures ...

Invalid DumpGPU capture when ProjectDisplayedTitle contains special utf8 chars

UE - Graphics Features - Mar 7, 2025

Placing a special UTF-8 character into the "ProjectDisplayedTitle" will result in GPU dumps failing to open. This appears to be because the dump will switch between us-ascii and UTF-16 file formats ...

Selecting multiple platforms to package in UFE may result in not all of the selected platforms being packaged

UE - Platform - Console - UnrealFrontend - May 9, 2016

A user stated that when trying to use UFE to package for WindowsNoEditor, WindowsServer, LinuxNoEditor, and LinuxServer, not all of the platforms were actually being packaged. LinuxNoEditor was bein ...

Crash using Find in Content Browser with -d3ddebug command

UE - Graphics Features - Dec 9, 2016

Crash occurs when using the Find in Content Browser option in the World Outliner. This only occurs when using the -d3ddebug command. If I don't use it, everything works with no crash. ...

Unexpected behavior with Broken Constraint and Physics Blend Weight

OLD - Anim - Jan 13, 2017

Looks like the position of the bone according to the animation is still being accounted for somehow, because the collision seems fine (when using pxvis collision). ...

Complex Collision as Simple causes odd Overlap behavior

UE - Simulation - Physics - Jan 25, 2016

When triggering overlap events with a Static Mesh using Complex Collision as Simple, the overlap Begin and End events will be triggered rapidly in sequence. Changing to Default collision will fix t ...

Parent Begin Play node does not appear to run the parent code class BeginPlay() function before the rest of the Blueprint's Begin Play functionality

UE - Gameplay - Blueprint - Feb 19, 2015

If a Blueprint event graph contains a Begin Play node that connects to a call to the parent function, the functionality present in the Blueprint Begin Play segment is run before the parent Begin Pla ...

With Use Fixed Frame Rate turned on, time-based elements of the Editor appear to operate at incorrect rates.

Tools - Oct 29, 2015

Turning on the Use Fixed Frame Rate option for a project causes time-based elements of the Editor to operate at incorrect rates. ...