I wouldn't classify these as bugs, it's just some parts of the backend that is hardcoded in CB.
Configuration:
General tab:
The first 4 drop down boxes aren't translated
Registration tab:
Some of the fields are hardcoded in english
Userlist tab:
The lines with column layouts are hardcoded english
Integration tab:
Everything is hardcoded english
Tools Manager:
Everything is hardcoded in english - perhaps this could be moved to a Tools tab in configuration?