Attached actor rotates incorrectly if the parent has negative scaling on one axis and more than 1.0 scaling on another

UE - Gameplay - Dec 27, 2016

A child actor rotates incorrectly if the parent has negative scaling on one axis and more than 1.0 scaling on another. The child/parent relationship was created through the World Outliner. Licensee ...

Copying a copied 5.0 project into 5.1 does not rename project folder as expected

UE - Editor - Workflow Systems - Nov 21, 2022

I was able to reproduce this issue 4/4 times, and initially started in version 4.26 to determine if this issue was a regression or not. When copying a 4.27 copied project into 5.0 or 5.1, the 4.27 w ...

Add Point node used with an InputKey of 0 or 1 will crash the editor on bp compile

Tools - Nov 29, 2016

Add Point node used with an InputKey of 0 or 1 will crash the editor on bp compile User Description: Unreal version 4.14 crashes every time that you use spline component and try to add the point 0 ...

ObjectScale returns a Cascade Mesh particle's XYZ scale as 1.0

UE - Niagara - May 13, 2020

Sampling a Cascade Mesh Particle's scale always returns XYZ as 1.0 This is a regression from UE4/Release-4.24.  This does NOT affect Niagara Mesh particles.  I've attached a Cascade (left example ...

Initial Modules are clamped to a 0 to 1 time range

UE - Graphics Features - Sep 18, 2015

The Initial Modules appear to be clamped to a zero to 1 time frame since 4.8 was released. Projects that are converted from 4.7.6 will have correctly working particle systems, but adding a new part ...

Analog Input does not work for network clients (AddMovementInput scale values other than 0 and 1 do not replicate for clients)

UE - Gameplay - Jun 26, 2015

If a value other than 0 or 1 (Ex. 0.1) is put into the 'Scale Value' parameter for the Add Movement Input node, any clients will respond as if the value is 1. User claims this worked in 4.6. ...

[Waveform Editor] - Changing the Edit time on a Sound Wave that has TotalSamples=0.0 can crash editor

UE - Audio - WaveformEditor Plugin - Nov 10, 2022

Rapidly changing the End Time on an asset that has TotalSamples=0.0 in the WaveFormEditor cases the editor to crash. Work around is to reimport the asset, which will restore that value. The crash hi ...

UMG: Drag-drop widgets get stuck at (0, 0)

UE - Editor - UI Systems - UMG - Nov 7, 2022

Reported on the dev forum, drag-drop widget is broken in the 5.1 Preview.https://forums.unrealengine.com/t/unreal-engine-5-1-preview/662523/221 Anyone else having problems with UUserWidget::SetPosi ...

Hypotenuse node unexpectedly returns "-nan(ind)" instead of "0.0" if both values passed into the node are "0.0"

UE - Gameplay - Blueprint - Feb 1, 2019

The Hypotenuse Blueprint node currently returns a value of "-nan(ind)" if both values passed into the node are "0.0". This result is correct based on the code that the Hypotenuse node uses, but is n ...

The slider handle in UMG is clipping at 0 and 1

UE - Editor - UI Systems - Jan 20, 2016

If the user sets the value on the slider to 0 or 1 the handle will clip as it appears to go too far to either side. ...