Namespace IntelliSense fails in .cs files

Hi Joe,
I'm on LINQPad9 (Premium, X64). When I edit .cs files in LINQPad, IntelliSense does not provide namespace suggestions correctly after a using directive:

However, it work well outside of the using directive context:

When editing "Script" or ".linq" file, IntelliSense works correctly after using directives:

Comments