Unreal Engine Issues

Groom Hair Visual Issue with RBF Interpolation Enabled

When "RBF Interpolation" is enabled in the Groom settings, applying an Animation Sequence to a Skeletal Mesh that animates at a position far from the world origin causes the bound Groom shape to bec ...

[AI] Warning for invalid bounds on ANavLinkProxy

Using ANavLinkProxy's smart link but removing all of the simple links results in warnings in the logs for invalid bounds. The smart link is not set to be enabled until after the navigation element i ...

The Starter Contents SM_Statue exists in a bad state, leading to crashes when trying to open levels where it is referenced

The SM_Statue exists in a bad state leading to a crash when it is loaded or anything that references it is loaded, e.g. Minimal Default level in the Starter Content. It can be deleted as a temporar ...

Crash in RHIBreadcrumbs during loading of Bundled PSO Cache if capturing an Insights trace on Win64 Development

When compiling a PSO, RHI Breadcrumbs can be fed a bad FRHIBreadcrumbNode, resulting in reading random memory and crashing during the recursive node iteration. This only happens when tracing. The i ...

FBX naming conflicts causing collision to not import correctly.

For our static mesh pipeline we have group nodes in Maya that use the name of the asset. Under that we have a mesh that also has the name of the asset. We may also have collision as well so a typica ...

Error in output log when Revision Control submits an asset for deletion with Virtual Assets enabled

With Virtual Assets setup in a project, when an asset is deleted and the changelist then submitted via revision control, the virtualization system will attempt to read the deleted asset. The submit ...

VolumetricCloud crashes in orthographic view

FVolumetricRenderTargetViewStateData structure for the orthographic view is not initialized and the structure has some uninitialized member variables. If uninitialized FVolumetricRenderTargetViewSta ...

Crash after multiple undo-redo of paths' creation.

Open street map building don't cast shadows in raster mode

Reproducible with cascaded and virtual shadow maps. Seems to be a regression from 2024.1.2. All TM 2025.x version have this issue. [Image Removed] ...

Modifying Notify Properties no longer updates the NotifyName in Blueprints with custom GetNotifyName function.

If after placing a notify on an anim sequence timeline you modify a property that is used in the GetNotifyName function of a blueprint notify in engine version previous to 5.5 (5.4.3 for example) th ...