To ensure that your additional tracking categories in TSheets carry over, re-sync your connection after you have added any additional custom fields in TSheets.
Navigate to Settings > Connected Apps > TSheets and click Save and Sync.
Once the sync completes, the additional custom fields created will be added.
Need to setup Advanced Tracking in TSheets?
To install in TSheets, go to SET UP > Add-ons OR Feature Add-ons > Manage Add-ons. Under Get More, find Advanced Tracking and click Install.