Show-InstallationProgress window never closes

When I run my customized deployment script from Powershell ISE the Show-InstallationProgress boxes remain open in their own thread and I can’t close them with out ending the entire powershell ISE task in the Task Manager. This is very annoying when trying to test and debug an extensive deployment script because I have to restart the ISE every time I run it. Is there a way to fix this or some solution I am missing?