Unreal Engine Issues

When transferring data from CPU to GPU particles using Array, if CollisionQuery is used simultaneously, the Array cannot be read correctly.

Crash in reinstancing after removing a variable from a component and compiling

Windows SDKs not recognized for HoloLens Development

This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...

Objects without custom delta properties can return false for CanSkipUpdate with net.PushModelSkipUndirtiedReplication enabled

This seems to occur after receiving a Nak for certain actors. FObjectReplicator::ReceivedNak will decrement SendingRepState.CustomDeltaChangeIndex even if the object has no custom delta properties. ...

Converting a light to Spawnable removes it from Light Mixer

This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...

Rect Light Texture does not unload during level streaming in packaged game

Niagara Skeletal Mesh DI Component Tag filter doesn't copy over when copying DI

UNiagaraDataInterfaceSkeletalMesh::CopyToInternal and UNiagaraDataInterfaceSkeletalMesh::Equals do not account for the component tags, so the tags array will be empty when the DI is copied. ...

Crash with Ensure when resizing layout

This is a regression as the issue does not occur in //UE5/Release-5.1.1 - CL 23901901 ...

Cannot delete parameters in a Niagara Parameter Collection after resetting the source Material Parameter Collection

Parameters left over from an old source MPC cannot be removed without renaming them first. When debugging in FNiagaraParameterStore::RemoveParameter it seems that the parameter cannot be found in ...

Shader Crash with Nanite in UE::RHICore::ValidateStaticUniformBuffer

This appears to be a general crash when a SingleLayerWater material is assigned to a Nanite Mesh. ...