I am having an issue in the editor when using a parenthesis. Whenever I type something and follow it with a parenthesis, SQL Navigator seems to hang for about 15 seconds and then comes back with nothing. It looks like it is trying to use code assist, but I do not get a menu or anything back. I can type anything and follow it with a parenthesis and it will happen. It can be a function, such as count(, or a non-function word, such as hello(.
Put a space inbetween the word and parenthesis, count (, and then using formatter to remove the space.
Waiting for fix to be released in a future version of SQL Navigator.