I have a fresh install of Subsonic 6.1.3 on Ubuntu 16.04 and Oracle Java 8 (I followed these instructions).
I am able to connect to the Subsonic server, but I am unable to change the default administrator password. Under the Users settings tab for the "admin" user, there is a checkbox labeled "Change password", but checking it does nothing and no text field appears to enter a new password.
Same behavior in Chrome, Firefox and Safari.
Not sure what I can do?