Dates in chart not correct

[pdeverson]

I created an XY Scatter chart from the data shown in the attached screengrab and the dates on the x-axis aren't the same as in the first column.
The dates in the first column are formatted as Dates. What am I doing wrong?

(MacBook Air, Sequoia 15.6, PlanMaker NX Universal (rev S1225.0703) 64bit ARM)