I have just downloaded the free version of the software. I need it to remove hundreds of duplicates in an Outlook 2016 calendar. I ran it once successfully -- I think -- and it processed about 1500 of 3500 entries. It appeared to remove the dupes it found, but there were clearly hundreds more. Now when I run it, it processes just one item, then shuts down, closes and re-opens Outlook. Have I missed something obvious here? Thanks.