Unreal Engine Issues

Adding/Removing a Material Layer on a Parent Material doesn't propagate to Children correctly

When a Material Layer is added to or removed from a Parent Material the layer changes don’t automatically propagate to Child Materials correctly even if the Parent Material is saved. The Child mate ...

Toggling Material Layer visibility in Parent Material doesn't propagate to children

When Material layer visibility is toggled on the Parent Material in a Material hierarchy, only the Parent’s layer visibility is affected, the children are not. Saving the Parent material has no effe ...

Sequencer - if you set the Take Separator to - rather than _ the New Take naming will mess up

When using a non-default take separator (eg "-") the "New Take" option produces a malformed proposed name for the take. ...

World Bookmark can't be saved when a Private Data Layer is "collected" by the UDataLayerEditorState

The World Bookmark system cannot properly handle Private Data Layer. The current state can make them unusable since the Bookmark might not be saveable. ...

[USD EXPORT] USD Exporter does not export subsequence data from the master sequence

As described in the steps to reproduce, when exporting a selected binding somwehere in a sequence hierarchy into usd, the export yields an empty result when using 'selection only' option. The export ...

Nanite: unused VertexInterpolator node disables Opacity Mask (material renders opaque)

On Nanite meshes, placing a VertexInterpolator node in a material graph without using it (unconnected, or routed through a disabled static switch) silently breaks the Opacity Mask and the material r ...

Mutable Dataless Generation - Regenerate Imported Models Crash

Crash when working with Dataless Mutable content. When selecting meshes in the instance, there is a crash in RegenerateImportedModels. ...

Crash editing Primary Assets Label in ShooterGame assets in 5.8

Niagara NDC GPU Instance Counter leak

In NiagaraDataChannelData.cpp, FNiagaraDataChannelDataProxy::EndFrame enqueues a GPU readback for each entry in PendingGPUReadbackBuffers, but the corresponding FNiagaraGPUInstanceCountManager::Free ...

Water plugin's RVT/ISR shader permutations fail PSO creation with instanced stereo (D3D12 SM6)

With Instanced Stereo Rendering enabled and the Water plugin enabled (default), PSO precaching speculatively compiles WorldGridMaterial × FWaterVertexFactory* permutations for the Runtime Virtual Te ...