Unreal Engine Issues

Mover plugin: Crash on UFloorQueryUtils::ComputeFloorDist() and other utility functions that assume the pawn uses a UCapsuleComponent

The following functions have been found to perform unchecked casts of the pawn's "UpdatedComponent" to class UCapsuleComponent, possibly resulting in crashes:UFloorQueryUtils::ComputeFloorDist()UGro ...

Certain Projects crashes on Start AR on iOS

Repro rate 5/5 Project crashes on pressing "Start AR" in ARDebugCheck, on "Begin Scan" in Handheld AR Template and on "Start AR" in ARImageDetection. Issue also occurs on ARVideoSettings and ARSave ...

Paper2D: Editor hangs when assigning Sprite Atlas Group to Sprite

In UE 5.3 and later, assigning a Sprite Atlas Group to a UPaperSprite asset can cause the editor to hang and eventually crash. This behavior has been reproduced in 5.3, 5.6, and a recent UE5-main so ...

GroomComponent: SetVisibility(false) causes per-frame simulation reset instead of stopping it

UGroomComponent::TickComponent sets bResetSimulation = true every frame when the component is not visible. This causes NiagaraDataInterfaceHairStrands to triggering a full simulation reset every fra ...

Performance will drop in PIE if simulate physics is toggled rapidly on an actor with attached components

Performance will drop in PIE if simulate physics is toggled rapidly on an actor with attached components User Description: Simulating physics for Primitive components causes severe performance dr ...

Editor windows do not lose focus when minimized on Linux

Using Ubuntu 15.04, editor windows do not layer correctly when minimized. Control remains with the minimized window. Ex. After minimizing a blueprint window, right clicking will still act as thoug ...

Cannot Rename or Delete Event Dispatchers if they are named "color"

Event Dispatchers cannot be renamed or deleted after being created if the name used is "color". ...

Editor discarding valid navmesh with world composition

The first time OnConstruction is called after duplication the Actor still has default class values

A Blueprint derived from a custom Actor class resets its variables to their default values when the Actor is duplicated, even if the actor being duplicated has a different value for that variable. T ...

Saving map with landscape creates texture asset in content browser

Saving map with landscape creates texture asset in content browser. ...