Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UObjectBaseUtility::IsA | UObjectProperty::SerializeItem
UE - Gameplay - Aug 15, 2017This 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, 2015A 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, 2015SetMaterial 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, 2018User 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, 2020Assertion 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, 2022When 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, 2024Using 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 ...
High Virtual Texture Sample/Lookup Cost when using a Virtual Texture in a Material Layer Blend
UE - Rendering Architecture - Materials - Mar 14, 2025Some Material Attribute blends in Material Layer Blends can cause Virtual Texture samples to be duplicated in HLSL. This can be avoided by sampling the Virtual Texture in the Parent Material, and pa ...
The Add node does not update in the Construction Script
UE - Gameplay - Blueprint - Feb 28, 2015The 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, 2015RepNotify 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 ...