FStaticMeshCompiler::FinishCompilation stalls when compiling multiple meshes.

UE - CoreTech - Oct 7, 2024

Calling "FStaticMeshCompiler::FinishCompilation" on multiple assets simultaneously can cause a hang. Also tested on //UE5/Release-5.5, CL: 36784631 ...

Deleting an asset and replacing with another asset while connected to source control can cause issues

UE - Editor - Workflow Systems - Oct 7, 2024

When using SVN, when deleting an asset in Unreal Editor and replacing it with another asset, the checkout fails and the references connected to the previous asset are broken. ...

Iris - Missed subobject destruction can cause incomplete client state

UE - Networking - Iris - Oct 7, 2024

From UDN assigned to [Link Removed]  ...

Calling GetMaterial during compile on load can cause the material shader to fail to compile

UE - Rendering Architecture - Materials - Oct 4, 2024

Calling UStaticMeshComponent::GetMaterial() during a Blueprint compile on load can cause the Material shader to fail to compile because GetMaterial will trigger a PostLoad call on that Material and ...

Array of structs does not animate sub properties correctly in Sequencer.

UE - Anim - Sequencer - Oct 4, 2024

Support for animating arrays of structs should either be disabled, or supported. ...

Changing a push model property without marking it as dirty can cause desync when the actor goes in and out of dormancy

UE - Networking - Oct 4, 2024

When the actor goes out of dormancy, it will replicate its push model property, even if it hasn't been marked as dirty. In this case, it seems the value of the property is not written to the shadow ...

Substrate- black outline appears when using sharp contrast mask to blend slabs

UE - Graphics Features - Oct 4, 2024

Substrate materials have a thin border of black pixels between slabs. These lines can be made more apparent by changing the Diffuse Albedo color of the two slabs to pure white. This will remove the ...

NPC - Instances does not get updates from changes to the parent Niagara Parameter Collection in the editor

UE - Niagara - Oct 4, 2024

When an Niagara Parameter Collection (NPC) is selected as the parent Collection for an NPC Instance (NPCI), all of its current parameters are carried over to the NPCI with their current values as th ...

Ocean spline impacting landscape way outside of its bounds

UE - Graphics Tools - Terrain - Water - Oct 4, 2024

From licensee: "[...] it seems that regardless of our settings and how far away the control spline is from the landscape edge, one corner of the landscape will always be impacted by the falloff and ...

GPU crash dump triggered with Intel H/HX processors

TM - Rendering - Oct 3, 2024

Some users have recently reported 'GPU crash dump Triggered' crashes launching, importing, or performing simple actions. Communicating with one user, general GPU TS has not helped(check for OS/drive ...