GameMode blueprint is not updated/compiled when settings are changed through Project Settings

UE - Gameplay - Blueprint - Jun 7, 2017

When using Project Settings->Maps & Modes->Default Modes to set GameMode defaults, the values will appear to change in the associated blueprint but these changes do not go into effect until the blue ...

Scaling with Vive Controllers in VR Mode with Blueprint Editor Open Causes Windows to Jitter Violently

UE - Editor - Workflow Systems - Jun 18, 2018

On Mac in VR Mode, when scaling the world with the controllers while the Blueprint Editor open, all open windows begin jitterring violently. This only occurs if the Blueprint Editor is one of the op ...

Can't connect nor send packet via TCP socket in iOS

UE - Platform - Apple - Jun 9, 2020

TCP Socket messaging in iOS seems not working.  ...

Pasting timeline components into another actor and then choosing "cancel" on fix self context function references results in a broken state

UE - Framework - Components - Sep 13, 2021

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue was reproduced. Regression - No ...

Screen widgets with transparency are darker when displayed in an HTML5 environment

UE - Editor - UI Systems - Jun 8, 2015

If the user creates a widget blueprint and adds an image with transparency the image will appear slightly darker when launched in HTML5 (firefox nightlie in this test) ...

Disabling bLerpUVs in Nanite Settings of Static Mesh causes texture warping in clusters

UE - Rendering - Graphics Features - Nanite - Jan 21, 2025

The licensee has identified a potential fix by changing if( Settings.bLerpUVs ) to if( Settings.bLerpUVs || UVIndex == 0 ) On line 389 of NaniteBuilder\Private\Cluster.cpp in UE 5.5 ...

Controller Mapping/Unmapping on some platforms is not ideal for local multiplayer

UE - Gameplay - Input - Nov 19, 2025

[Link Removed] The workaround is as I posted in the UDN, to override the viewport client or to make a custom slate input mapping to change this behavior. But, there is a bug with that unmapping/l ...

Modifying a User created widget with an explicit navigation will cause the navigation to revert to it's default settings

UE - Gameplay - Blueprint - Jun 30, 2015

EDIT: Initial investigation done, check comments. If the user creates a widget and then places that widget inside of another widget via the User created section and then sets up a navigation using ...

ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes

UE - Rendering - Architecture - Materials - Sep 6, 2021

The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...

MaxDrawDistance set by CullDistanceVolume is lost on saving sublevel

UE - World Creation - Worldbuilding Tools - Feb 21, 2025

The UpdateCullDistanceVolumes behavior when saving was changed by CL-36588597. Only CullDistanceVolumes in the same sublevel can affect Max Draw Distance. ...