I believe the CloudKit console has an issue when displaying a large number of rows (around 1,677).
If I don't perform any filtering and make sure I am on page one (by scrolling to the bottom and ensuring there is only a 'next' button and no 'previous' button), sorting by 'Created' only shows records up to the year 2024.
However, if I apply a text filter to search for the latest record, my 2026 records appear correctly.
I have attached a screenshot for your reference.
I am testing it under Development environment. I am looking at the private database / com.apple.coredata.cloudkit.zone. I had to add the recordName index to browse this data
