Crash when removing cloth apb's assigned to asset

UE - Simulation - Physics - Character - Apr 27, 2016

When removing already assigned cloth asset from a skeletal mesh it will crash the editor. I was able to reproduce this with the Owen asset from Content Examples, but was unable to get it to work fro ...

Procedural meshes spawned at runtime cause a crash

UE - Simulation - Physics - Jan 10, 2017

When using a procedural mesh at runtime, projects fail on mobile devices. Tested on both Android Nvidia Shield and iPhone 6+. ...

Memory leak when repeatedly opening levels on Android

UE - Platform - Mobile - Mar 17, 2017

We tested on xiaomi 4c. ...

Map Get Node Pins In Niagara Module Scripts Can't Search For Standard Data Types

UE - Niagara - Mar 16, 2020

This wasn't like this in 4.24 (see attached images). If you create a variable Engine.Owner.Position the search will find it however. Found in 4.25 Preview 2. Reproduced in 4.26 Main. ...

Static variable declaration causes unresolved external errors when calling FRootMotionMovementParams functions

OLD - Anim - Jan 11, 2017

Attempting to call a FRootMotionMovementParams function results in an unresolved externals error on compile because of the static FVector RootMotionScale variable. Workaround: In source, removing s ...

Drop down menus clip on 27" Screen iMacs

UE - Platform - Apple - Mar 17, 2017

Drop down menus clip on 27" Screen iMacs (See attached images.) Reported from a 27" iMac and tested on a 27" iMac here. Other models may be affected. *Image with Blue circled areas are from the use ...

The Rotate Around Point Niagara module does not account for current particle position

UE - Niagara - Oct 16, 2019

The rotate around point module no longer adds in particle position, so it does not account for other forces and modules effecting the particles, and will only spin in a circle by default. The user c ...

incorrect virtual texture shader code(in FinalizeVirtualTextureFeedback) on Mobile forward platform

UE - Graphics Features - Mar 15, 2021

in the function FinalizeVirtualTextureFeedback, the micro "USE_DBUFFER && MATERIALDECALRESPONSEMASK" returns true on mobile forward, while there is no DBUFFER on Mobile forward obviously. This takes ...

SingleLayerWater is rendering brighter shallow water with fog

UE - Graphics Features - Jul 12, 2021

Shallow water areas in scenes with exponential height fog will be brighter than they should be. Possibly due to the fog being applied twice in the SingleLayerWater shading model. ...

UMG property binding fixup for real numbers doesn't always work

UE - Editor - UI Systems - UMG - Apr 5, 2022

For UMG delegates, we currently have a fixup pass that ensures that bound functions match the signature of the native delegate. However, the fixup appears to use the wrong function name, which cause ...