Getting occassional fatal error. Last exception pointed to RaisePropertyChanged in MainViewModel for NumberOfBackups, so I put a try/catch around it
Disabled incrementing of _numberfOfBackups and Messenger.Default.Send for _numberOfBackups.

In the SaveCreated trio of Debug.writeline methods for success, removed references to _numberOfBackups.
Added @ to strings to make them literal. Illegal characters in path is
Disabling watcher.
With only Deleted enabled, no crashes. Reenabled Created and removed the InternalBufferSize
ReEnabled OnRenamed and made breakpoints for non skse files in OnRenamed and Created
Attempting to clean up code. Removed extraneous comments and most debugging language to start fresh.