Object Scale Not Working with Instanced Static Mesh

UE - Graphics Features - May 19, 2016

Using Object Scale in your material with an Instanced Static Mesh does not change the color of the material if you scale the individual instances of the Instanced Static Mesh component. If you scal ...

[CrashReport] UObjectBaseUtility::IsA | UObjectProperty::SerializeItem

UE - Gameplay - Aug 15, 2017

This is a trending crash coming out of the 4.17 release. Update: also occurring in 4.18 User DescriptionsCompiled after Refreshing Blueprint node after changine its namePressed compile after creat ...

BlueprintNativeEvent functions break on hot reload

UE - Gameplay - Blueprint - Mar 7, 2015

A blueprint that uses a node for a BlueprintNativeEvent function breaks on hot reload. Blueprint cannot be saved or compiled. Compile error states: Error This blueprint (self) is not a HOTRELOADED ...

SetMaterial allows the user to add a Material which updates the GetMaterials array but not GetNumMaterials

UE - Gameplay - Jan 15, 2015

SetMaterial allows the user to add a Material which updates the GetMaterials array but not GetNumMaterials. The user who reported this was trying to add a material to a skeletal mesh during runtim ...

'Get Distance Along Spline At Spline Point' Causes Crash

Tools - Jul 28, 2018

User reports that the reason for the crash is that because UpdateSpline is false on the AddSplinePointAtIndex blueprint node, this line is never called [ReparamTable.Points.Reset(NumSegments * Repar ...

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled

UE - Audio - Jan 7, 2020

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled User was able to workaround the issue by replacing Audio::FAudioCaptureAndroidStream::CloseStream() wi ...

[MetaSounds][Stereo Mixer] - When changing the gain on the Right channel dynamically, the output has clicks and pops

UE - Audio - MetaSounds - Mar 31, 2022

When changing the right channel gain of the stereo mixer at runtime, it generates clicks and pops in the output. ...

Custom node not working with material attributes

UE - Rendering Architecture - Materials - Jul 15, 2024

Using Material Attributes as an input to a Custom Expression causes the HLSL Translator to create multiple CustomExpression# functions, for each used member of the Material Attributes, rather than u ...

The Add node does not update in the Construction Script

UE - Gameplay - Blueprint - Feb 28, 2015

The Add node does not update in the Construction Script. Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917) ...

RepNotify variables passed by reference to a function or macro that then change the value of the variable do not trigger the OnRep function on the Server

UE - Networking - Jul 1, 2015

RepNotify variables passed by reference to a function or macro that then change the value of the variable do not trigger the OnRep function on the Server. This is inconsistent with the behavior with ...