Running Locate Notes Data Stores for a second time and cannot click on the "Domino Server" option (4319677)

When running the "Locate Notes Data Stores" a second time,  the option "Through Domino Server(s)" within the Notes Data Locator Wizard is not available.

Selecting the following options on this window: "Find new data stores and gather statistics", "Add to existing data" in the drop down box,  and the box  marked  "Mail files".

When "Next"  is clicked,  only  the option "Scan file system directories that I specify" or possibly "Use MailFilePath from database. (1 of 1 populated)"   is available. The option to select "Through Domino Server" is Grayed out.

However, if on the first screen  "Gather Statistics" was selected,  the Domino Server option is available.