Unreal Engine Issues

Console command “showflag.rendering 0” causes crash

A crash occurs when the console command “showflag.rendering 0” is executed. This does not occur in UE5.5, so it is a iassue in UE5.6. ...

Bindless Textures in active use are able to be garbage collected

It is possible for textures referenced in the bindless texture data assets that are actively used in materials being rendered in the active viewport to be garbage collected. This results in the mat ...

Editor crash when adding mesh renderer elements in Niagara

When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...

Saving Behavior Tree with Blueprint task inheriting from native class invalidates Blackboard key when BP contains a function

A regression introduced in UE 5.6 causes Blackboard key selectors in Blueprint tasks to become invalid when the Blueprint inherits from a native subclass of UBTTask_MoveTo (or UBTTask_BlackboardBase ...

PCG crash when using Attribute Remove Duplicates on partitioned data if one of those sets of data is empty

Context: In PCG, the Attribute Remove Duplicates node can be used to remove duplicate attributes from an array. Problem: The licensee has observed that using the Attribute Remove Duplicates node ...

In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled

In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled. To verify this, follow the steps provided in the Steps to Re ...

The DistanceCurveModifier generates Distance Curves with zero values for Root Motion animations

The DistanceCurveModifier data modifier generates curves that return zero values only. This issue has been tested on several Animation Sequences with enabled Root Motion and always occurred. ...

There is no notification for when the user settings have been created for Enhanced Input

"Filter Recursively" option in the Content Browser does not function

[Level Instances] Editor Actor Folders does a full refresh after any LI is loaded, leading to wasted time when bulk loading LIs for a given WP region load

From Licensee: We discovered a pretty big performance hit in editor when loading level instances for a world partition map, specifically: EditorActorFolders.cpp:FActorFolders::OnAllLevelsChanged() ...