Modified Date coming up as 12/31/1400
I performed a rebuild of the indexes and several of the items in the index have a modified date of 12/31/1400. I created a Post Item pipeline step to check the args.CoveoItem.ModfiedDate of these items to confirm the modified date, and the modified dates are correct. At some point after the Post Item Processor, the date changes to 12/31/1400.
I even tried programtically setting args.CoveoItem.ModifiedDate and the date is not respected.
Could this be a bug? This is not happening to all items.
License Type: SitecoreCloudTrialEdition Version: 4.0.450
1400 seems to be the minimum date from the boost C++ library used by the index. It seems to me that your items were indexed without a modified date or with an invalid one which caused a default on the minimum date.
The accepted date format of the Coveo index is
yyyy/MM/dd@HH:mm:ssZ. If you are setting the date in another format, you're likely to get that kind of problems.