Unreal Engine Issues
Unreal Engine Issues
Sequencer: Camera blends restore to incorrect view target after Keep State
UE - Anim - Sequencer - Jan 20, 2026When a Level Sequence’s Camera Cut track with When Finished = Keep State is played, the “original state” is persisted into the PreAnimatedStorage array inside FPreAnimatedCameraCutStorage. From the ...
Cloud materials not loaded in local Presentations
TM - Core - Nov 5, 2025Reported in SF [Link Removed] Locally exported Presentations may show some downloadable Twinmotion library materials with the placeholder material when the Presentation is opened. This only occurs ...
HDRIs do not appear in exported Presentations
TM - Core - Jan 7, 2026Reported in SF [Link Removed] HDRI environments are not appearing in exported Presentations. Occurs for both Local and Cloud exports and across all HDRI types. Thumbnails for Cloud Presentations w ...
Texture reprojection from one plane to another produces displacement map with a pattern
RS - Texturing - Mar 4, 2025Found in 1.5.1.118081 Project: [Link Removed] Message from customer: "The problem occurs when using the texture reprojection tool on a surface scan to bake model details onto a simple bake plane ...
Invalid Landscape Normals at component boundaries and subsections In Packaged Build
UE - Graphics Tools - Terrain - Oct 31, 2025In UE 5.6, heightmap texture compression was introduced. The original implementation did not consider duplicate pixels along subsection and shared textures (multi-component) boundaries. As a result, ...
Patterns On Landscape Spline Normals
UE - Graphics Tools - Terrain - Oct 31, 2025On higher-density Landscapes, Landscape Splines can lead to patterned artifacts in the geometry normals. Also tested on //UE/Release-5.6, CL:45232827 ...
Material LocalPosition node does not work correctly with Nanite Skinned meshes
UE - Graphics Features - Dec 1, 2025Nanite Skinned Meshes don't receive the correct Local Position in some shadow passes. This depends on the clipmap level, and is not related to VSM caching. Unreal Engine 5.6 shows the same issue, b ...
World Position is incorrect when used to control the opacity mask in a nanite spline mesh
UE - Graphics Features - Feb 20, 2025When calculating the opacity mask, Nanite spline meshes do not have the correct World Position in the Material. This leads to visual artifacts when the mask relies on the world position. ...
Control Rig compile issue - Re-Entry of Instructions
UE - Anim - Rigging - Control Rig - Jan 8, 2026Compiling a specific graph construction generates a compile error and blocks the execution of the graph. Sync to AnimSandbox CL 49645845 See attached picture and attached Control Rrig asset ...
Call In Editor functions not working in blueprints
UE - Editor - Developer Usability - Dec 19, 2025Context When selecting a component on an actor, any CallInEditor functions on the component's class appear as buttons in the details panel. Problem The CallInEditor functions don't execute in Blu ...