When you create a Report List in with Language Settings in English, the selection that you make in the Statistic list might change automatically when you re-open the project in a different language.
For example, suppose you create a new Report List, and you select Display all values from the Statistic list.

You save your project, select Italian instead of English, and close SAS Enterprise Guide. The next time you open SAS Enterprise Guide, your new language setting is applied.
You modify the Report List Task, and see that the option Display all values is no longer selected in the Statistic list. Instead, Show Standard Deviation is selected.

To address this issue, you must select the preferred option from the Statistics list, and re-save your project.