Unreal Engine Issues
Unreal Engine Issues
Nanite Mesh Dither Opacity Mask Not Working in 5.6.0
UE - Graphics Features - Nanite - Jul 30, 2025In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...
[Interchange] No data imported when trying to import animation only on a previously imported skeleton.
UE - Editor - Content Pipeline - Import and Export - Jul 29, 2025Hardware Raytracing on Lumen can cause a crash on AMD Radeon GPUs
UE - Graphics Features - Lumen - Jul 29, 2025Hardware Raytracing support can cause a crash on AMD Radeon GPUs when creating the RT pipeline state. ...
Unloading a World Partition region during nested Level Instance inline editing prevents exiting editing mode
UE - World Creation - Worldbuilding Tools - Level Instances - Jul 28, 2025In the case of a single-layer Level Instance, actors are still referenced even when the region is unloaded. However, in the case of nested Level Instances, the level being edited is discarded when t ...
Mutable RemoveMesh node with data from DataTable
UE - Anim - Mutable - Jul 28, 2025Hi, We are trying to use Mutable plugin to avoid clipping using the RemoveMeshNode with data from DataTables. However we are having trouble with the most basic example of our idea. We have a Data ...
Copy-pasting custom property nodes (ControRig etc.) results in invalid bindings, perf issues
UE - Anim - Rigging - Control Rig - Jul 28, 2025From this UDN: [Link Removed] Suggested fix:Override PostPasteNode to perform the GUID update andAdd validation on load to strip 'invalid' copies that do not correspond to a valid pin input ...
Merge Actor - Approximate Actors algorithm is using Mesh Description directly rather than the Nanite parameters
UE - World Creation - Worldbuilding Tools - Merge Actor - Jul 25, 2025In an ideal world, all mesh merge algorithms should have the option to use as input one of the followingRender mesh (non-nanite) (+ the option to target a specific LOD)Mesh Description (+ the option ...
UPoseSearchDatabase::SynchronizeWithExternalDependencies re-adds existing DB assets that don't have branch in notifies
UE - Anim - Gameplay - Jul 25, 2025If we have PSDs that contain assets that were added manually to the database and also others that were added via branch in notifies then SynchronizeWithExternalDependencies will remove and re-add th ...
UWorldPartitionSubsystem::IsStreamingCompleted returning the wrong query result when all cells and actors in location are in DataLayers
UE - World Creation - Worldbuilding Tools - World Partition - Jul 24, 2025Context: Data Layers is a system within World Partition used to organize Actors both in the Editor and at runtime. It allows for the user to dynamically load and unload layers in the Editor to help ...
Nanite Landscapes in Non world partition maps has missing sections
UE - Graphics Tools - Terrain - Landscape - Jul 23, 2025Nanite in non world partition worlds builds with missing section, almost half the landscape is missing. Looking at the nanite overdraw as attached, it shows an interesting pattern. ...