I have fixed an issue with editing posts. If you run into an issue where you cannot see the edit button, then please clear your browser cookies/cache and try again before reporting a problem. Usually this fixes the issues.

Fix is due to the way subsilver/prosilver holds onto the language styles. For example, check under styles/prosilver/template/ and make sure its either en or en_us. I changed to en_us and it works.