Unreal Engine Issues

Unable to save project due to user created blueprint node that creates user created object

When a user creates a blueprint node of their own that is used to spawn a user created object, the project becomes unable to be saved after the blueprint is put into use. ...

UEnum::NumEnums appears to be returning one more than the actual number of elements in an enum.

A user reported that UEnum::NumEnums appears to be returning one more than the actual number of elements in the enum. ...

Calling SetNavigationRule for widgets at runtime does not update the Nav Rule

Calling SetNavigationRule at runtime does not update the widget navigation of the selected widget. Regression: No - same behavior occurs in 4.16.3 (CL 3561208) ...

Ray Traced Translucency causes artifacts when rotating a Static Mesh that is far away from center of the map

Tested in //UE4/Release-4.27 CL#18319896 Ray Traced Translucency causes artifacts when rotating a Static Mesh in the 'Open World' level when moved far away from the center of the map. The Artifacts ...

MaterialInstanceConstant doesn't refresh soft references of non-overridden texture parameter

Observed by a licensee: [Link Removed] When a material instance points to a material, and the material is edited to change a texture and the material and material instance are saved, the material i ...

Compiling Blueprints breaks socketed attachments of actors attached to non-root components

When blueprints are compiled, instances of those blueprints have their attachments detached and then reattached. Reattachments always occur on the RootComponent regardless of which component they we ...

Nanite Dynamic Tessellation issue with Material Layers

Syncing to an asset through in-editor interface will not update existing assets while in the editor

If a user syncs to an asset through the editor (right-clicking it in the Content Browser and selecting Sync), the asset will not update until the editor is closed and reopened. Note: This issue is ...

Implied Decal Blend Modes don't account for static ignore-switch parameters in an expected way

The desired behavior from a user perspective here is that they'd be able to use Static Switches in a decal master material to toggle different features and behaviors. In the above setup, if I set th ...

AppleARKit forces view projection matrix according to device viewport

[Link Removed] ...