When you open a table in the table viewer in SAS Studio 3.83, you can select the number of columns to display by navigating to Options ► Preferences ► Tables ► Columns Displayed. The default value is 30.

Here is a screenshot with 30 columns selected.

You can select more columns to display. If you select the columns sequentially after the previously selected column, the columns are displayed successfully. However, if you skip one or more rows and then select a column, the following error occurs:

Workaround

To circumvent this issue, use the Select all option to select or clear the columns as needed.