A Bizarre Crystal Phenomena with Grouping on DateUpdated

SOLVED

I thought I had my head was on straight today. Maybe not. Below is a screen shot of a simple report of SO_SalesOrderHeader that is grouped by DateUpdated. The group header shows 8/21/2022, but the Date updated shows 8/22/2022.  There are no suppressed sections. I copied the "Group #1" field from the group header to the right end of the detail section to further demonstrate the issue. I am curious why aren't the DateUpdated's for 8/22/2022 in a section with the same date? if anyone has some ideas what's wrong with this picture.