Can't really reproduce it reliably but on c.nc.c/settings/admin/theming the login image isn't shown for administrators anymore. Any idea, @juliushaertl? <img width="1112" alt="screen shot 2017-05-09 at 13 23 22" src="https://cloud.githubusercontent.com/assets/878997/25848454/b757bd9c-34ba-11e7-952b-13c3b420b2e8.png">
Can't really reproduce it reliably but on c.nc.c/settings/admin/theming the login image isn't shown for administrators anymore.
Any idea, @juliushaertl?