Just in the past few days a few tabs have gone missing in P123. Without the tabs it's impossible to make desired changes.
The Ranking Method tab located in the Factors section of a Ranking System is missing.
The Edit tab in the About section of a Data Series Import is missing (modifying data in the About section is the only way to trigger a "Date Updated" change for a Data Series.....simply uploading new data doesn't trigger a "Date Updated" change, so the Edit tab is important.
Refer to my submited tickets for additional details.