Behavior of reparenting Component on UE5 is different from UE4

UE - Gameplay - Blueprint Editor - Mar 29, 2022

In UE4, Reparenting the Child Component did not update it on the screen, but the Relative Transform was updated. However, UE5 now retains Relative Transform, so there are on-screen updates. This is ...

Virtual Heightfield Mesh crash using released Vertex Factory

UE - Rendering Architecture - Jul 25, 2023

When using VirtualHeightfieldMesh we see intermittent crashes in FDepthPassMeshProcessor::TryAddMeshBatch(). This can happen when FVirtualTextureProducerCollection::CallPendingCallbacks() is called ...

Ensure triggered when creating Scene Proxy for GroomComponent

UE - Rendering Architecture - RHI - Apr 30, 2025

When a room component is added in C++ via the actor constructor, an ensure is triggered from precaching and the groom component. Behavior also observed on UE5/Release-5.5, CL: 40988944 ...

Editing Struct variable types can cause pins of an array of that struct to become disconnected

UE - Gameplay - Blueprint - Jun 6, 2016

When changing the variable type of a variable in a struct, it can cause some pins related to arrays of this struct to become disconnected. The project provided was from the Marketplace, entitled "Su ...

Editor crash when using Straighten Connection shortcut key

UE - Gameplay - Blueprint - Feb 8, 2017

Using Straighten Connections shortcut can cause the editor to crash after removing node pins. This appears to be due to GetGraphPinForMenu returning the last pin selected (in this case, the removed ...

UIpNetDriver::ProcesRemoteFunction warnings appear for ShooterGame clients when switching weapons

UE - Networking - Nov 5, 2015

The following warnings appear in the output log for ShooterGame clients when switching weapons. [2015.11.05-19.41.11:550][253]LogNet:Warning: UIpNetDriver::ProcesRemoteFunction: No owning connectio ...

Folder disappears upon cancelling renaming by pressing ESC key twice

UE - Editor - Content Pipeline - Content Browser - Sep 27, 2017

Working: 4.16 Broken: 4.17.1, 4.17.2, 4.18 When cancelling the renaming of any folder or sub-folder in the Content Browser by pressing ESC key twice, folder or sub-folder will not be visible in Co ...

Point lights with source length building static lighting in incorrect direction

UE - Graphics Features - Mar 21, 2018

There is an issue where Point lights with source length building static lighting in the incorrect direction, the axis in which the light to be built seem to conflict with the preview build. This iss ...

Exceptions can no longer be enabled for ProjectEditor targets

UE - Foundation - Cpp Tools - Jul 16, 2018

It is no longer possible to enable C++ exceptions for the ProjectEditor target in code projects that use the binary Engine. Some fixes that were made for 4.19 now correctly show an error message if ...

Properties of placed-in-map actor instances may not replicate if their default has been edited

UE - Networking - Mar 26, 2019

If the default value of a replicated property is edited on an instance of a placed-in-map actor, then on the server is value is changed back to the default, a client who joins in progress after this ...