
I have this list of fields needed to be on the report. Note that the last field I added is "LANTHI".

The grouping setting.

At this step, choosing "Stepped" layout causes the problem. The "Outline" and "Block" layout work just fine.

This is the result. You can see that there is no textbox or label for the field "LANTHI".

The field "LANTHI" is also nowhere to be found in the Property sheet.
I only modified the Report Wizard in steps shown above, leaving the others default.
The source query is just a simple query to retrieve the needed fields. I have also tried adding the fields directly from the tables, but the result is still the same.