The app tries to auto-update your downloaded regions in the background every few hours, but if you haven't had the Trailforks app open recently, the app won't have had a chance to update in the background. You can force an update/sync by going to the "downloaded regions" page within the app Saved/Wishlist section accessed from the side menu. You can sync regions individually or you can drag the page down to sync all your downloaded regions.
STEP 1
Go to the main dropdown menu, and tap on Settings.
STEP 2
Go to 'Downloaded Regions' and from here, you can see when the region last synced.
Alternatively, you can also go to 'Manual Sync,' and choose to 'Update All Regions.'
STEP 3
Under Manage Regions, click on the 3 dots to pull up the menu. From here, you can refresh the region you wish to individually.