In this reproducer - https://jsfiddle.net/t6ga5c23/1, the scatter series second point with x-value as 2023-05-31 is not visible. To confirm, un-select the first series and notice that it is visible.
A workaround I found is to set ordinal to False (https://jsfiddle.net/t6ga5c23/2/), but it makes chart look differently. How can I show the scatter series point without setting ordinal to False?
Also, it seems the scatter series' second point is not behind the last column, because reducing pointWidth did not help - https://jsfiddle.net/odn41rwc/