Built-in completion menu bug in Windows PowerShell 5.1

Tip

• PSCompletions uses the completion menu provided by the module itself by default, which is not affected by this bug.
• Unless you switch to PowerShell's built-in completion menu by running psc menu config enable_menu 0.

• In Windows PowerShell 5.1, due to a bug, the built-in completion menu is not triggered when using - or --.

• Solutions:

  • Use the completion menu provided by PSCompletions instead of PowerShell's built-in completion menu.
  • Switch to PowerShell (pwsh), as this bug was fixed in PowerShell 6.0.
  • Alternatively, add a character after - or --, such as -a or --a, and then press Tab to trigger autocompletion.