Unreal Engine Issues

Linux Editor creates multiple installation identifiers for itself if Install.ini is removed

The first ID contains brackets and a trailing slash while the second does not. Alternatively if the engine is opened with a .uproject argument no ID will be created until the "Open Project" dialog i ...

Niagara Parameter Collection Overrides aren't working

Parameter collection overrides defined in the Niagara system's System Properties do not work. In FNiagaraSystemSimulation::GetParameterCollectionInstance the return value of GetParameterCollectionO ...

Fix primitive uniform buffer validation.

GPUScene primitive validation is currently busted and asserts. It looks like there are two problems: 1) NaN's in the entries can cause comparison issues, so a MemCmp would be better. 2) There's a ...

Actors are not properly restored when undoing a Replace Selected Actors transaction

When undoing a Replace Selected Actors operation, the resulting actor is corrupt and triggers an ensure where the root component is in the process of being destroyed. This is a regression that poppe ...

Nodes of inherited function don't refresh automatically in the opened BP editor if implemented interface is altered

Nodes of inherited function don't refresh automatically in the opened BP editor if implemented interface is changed.Workaround: refresh nodes manually Regression: NO Can be reproduced on the 4.25.1 ...

[CrashReport] UE4Editor-Engine!FStaticMeshVertexBuffer::BindLightMapVertexBuffer(FVertexFactory const *,FStaticMeshDataType &,int) [StaticMeshVertexBuffer.cpp:636]

Generated from CrashReporter ...

Crash when attempting to connect a custom Niagara parameter struct to a node when the struct contains an array

Crash when attempting to connect a custom Niagara parameter struct to a node when the struct contains an array ...

Virtual keyboard does not work on TVOS

The virtual keyboard on TVOS is not popping up when a text input (UMG Editable Text Box) is focused and then selected with Siri remote. ...

Expanded array of structs is collapsed whenever a new array item is added

[CrashReport] UE4Editor-D3D11RHI!static void TerminateOnDeviceRemoved(HRESULT, struct ID3D11Device *) [D3D11Util.cpp:160]

This ticket tracks instances of D3DHung crashes now that Aftermath has been enabled in 4.25.0. [Link Removed] was marked fixed and closed with the enabling of Aftermath. Error Messages: Fatal err ...