A new SQL Navigator beta is available with following changes:
SQLNAV-2201: fixed an error with Datafiles node in DB Navigator in a 12.2 database.
SQLNAV-2218: fixed an issue that double clicking to select text doesn’t update the selection info in the status bar.
SQLNAV-2221, fixed an issue that reconnecting doesn’t work for sessions Connect As SYS or SYSDBA.
Also, updated QP5 parser to v5.325.
Download Beta build 73 expiring on 31-May-2018
SQL Navigator Team