Incorrect Velocity Calculation at Animation Sequence Transitions in Level Sequence

UE - Anim - Sequencer - Feb 18, 2025

When adding an Animation Track to a Level Sequence and placing Animation Sequences back-to-back without gaps, the velocity can be miscalculated at the transition between sequences. This issue occur ...

Breakpoint triggered in Visual Studio after running "{,,UE4Editor-Core}::PrintScriptCallstack()" command

UE - Gameplay - Blueprint - Jan 10, 2018

Running the command {,,UE4Editor-Core}::PrintScriptCallstack() in the Immediate Window in Visual Studio while debugging is paused in Visual Studio will result in a breakpoint being hit when the ...

Clear Timer by Function Name does not appear to be callable from a widget blueprint if the function is owned by a UObject

UE - Editor - UI Systems - Dec 12, 2016

Clear Timer by Function Name does not appear to be callable from a widget blueprint if the function is owned by a UObject. The Timer clears when the custom event is called by other blueprints, howev ...

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 - 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 ...

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 ...