It seems everyone is trying to beat the 1 March 2018 deadline?

CURRENT SYSTEM ISSUE:

The department is currently experiencing system performance issues due to a high volume of applications.

Users may be unable to access attach documents, biometrics or health assessment functions within ImmiAccount, or commence a subsequent application until several hours after the application has been submitted. If you are experiencing any of these issues, please try again later.

News from Dept of Home Affairs (formerly Dept of Immigration and Border Protection)