Lost traffic over time

Hey All

I've been running into a problem whereby I have a longstanding route with maybe 30% transfer/connection traffic, then at some point in the future when I go to replace the a/c with a newer one, I'll see all the transfer traffic is gone (maybe 5% of the original 30% left). After pressing Save, the lost traffic reappears.

Also, I used to be able to view all routes on one page. How can I easily "command" all routes to recalculate? This would be akin to pressing "Save" on each route after opening one at a time.

Thanks for your hard work!