Fixed an issue where baking terrain outputs using output nodes would result in an error

Fixed an issue where the plugin will commonly log the "Composing Child Node List : Invalid argument given: Node is not a network node so it has no children!" error for certain editable nodes (curves)

Fixed an issue where unity_split_attr will result in an error if the attribute is not a string attribute

• Fixed an issue where the Houdini Engine Tools with both HDA and Mesh input would not assign both inputs correctly.
• Mentioned the documentation in the Visual Scripting example scene.