Since the latest update I keep losing my settings for Rackspace CDN and/or I get an error about authentication even though the settings are correct. The only way to fix it is by saving the settings again.
In my case im using a load balancer on the site with settings saved in a repo. So why does it sometimes fail to authenticate? This isnt a rackspace issue because the same set up works fine on stage with 1 server.
Side question, which file is the correct settings file now? I see a master.json file but also the master.php and master-admin.php file. Why are there so many settings files and which one do i actually need to use/keep in my repo?