Windows may have blocked the replacement file importer executable from running.

Right click on PharosSystems.Core.FileImporter.exe (found in \Program Files\PharosSystems\Blueprint\bin) and select Properties. If it is blocked, there will be an 'Unblock' button displayed (see attached screenshot).

After unblocking the executable, restart the Pharos Systems ComTaskMaster service & Pharos Systems TaskMaster service.