When setting the min date, you can use the approach specified in the following topic:
to ensure a type match between the DateTime value and the double type of the MinValue property.
Further, at present I cannot determine for sure why there is a misalignment between the value and the tick. If the issue persists, you can open a formal support ticket, and send us a small project, demonstrating your setup, and showing the unwanted behavior, for additional review and testing.
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