Hotfolder Stopping

I start my hotfolder function, it runs and then stops. the interface still shows it running but it simply loops once. See below:

2019-05-08 13:33:47.8402 [Debug] pdfforge.HotFolder.HotFolderObserver.StopWatching: Stopping to watch XXXX at C:\FILESYNC\CP\InboundTIFF\XXXX
2019-05-08 13:33:47.8402 [Debug] pdfforge.HotFolder.HotFolderObserver.StopWatching: Stopping to watch YYYY at C:\FILESYNC\CP\InboundTIFF\YYYY
2019-05-08 13:33:47.8402 [Debug] pdfforge.HotFolder.HotFolderObserver.StopWatching: Stopping to watch ZZZZ at C:\FILESYNC\CP\InboundTIFF\ZZZZ
2019-05-08 13:33:47.8402 [Debug] pdfforge.HotFolder.ViewModels.MainWindowViewModel.StopHotFolderExecute: all hotFolders stopped.

This is running on Windows 2012 R2.

Your help is appreciated.

Julio

I should have stated that I am logged in as admin.