List items for Object variables overflow in Inspector when added through the script graph window

Steps to repro:
1. Create a new Project
2. Project window > Right-click > Create > Visual Scripting > Script Graph
3. Select a GameObject in Hierarchy > Add Component Script Machine
4. Assign Script Graph in Script Machine Component
5. Select Script Graph > Edit Graph
6. Blackboard > Object Variable > Type Variable Name
7. Set Variable to type to List<Int>
8. Click plus symbol to add items to the list

Actual Result:
List items overflow in the inspector of the object

Note:
1. Additionally deleting list items from the graph window doesn't shrink the area of the list in the inspector
2. It resolves after reselecting the object

Expected Result:
List items doesn't overflow in the inspector

Reproducible on: 2020.2.0a10, 2020.1.0f1, 2021.1.0b1

Note: Visual Scripting was introduced in 2021.1.0b1

Package Version 1.6.0-pre.3, 1.5.2, 1.5.1-pre.3

Environment:
Windows 10, Mac 10.15