Close-Document -Save doesn't save changes with InventorServer

When using Close-Document -Save $true to save a document with InventorServer the document is not saved and it appears to the user that everything worked properly

Description

When an Inventor document is opened with "Open-Document -Application InventorServer" and closed using "Close-Document -Save $true" document is not saved and it looks like everything worked properly

Cause

InventorServer doesn't support saving of files and powerJobs doesn't display this as an error

Solution

If you want to modify and save Inventor files you have to use a full Inventor. There is no way to do this, using InventorServer.