The chief examiners for each unit upload to WES and then released centrally by the university on the 10th or whatever (afaik).
I have had one instance where a result for 1 of my units was released prematurely (I think this was due to human error by someone).
But yes, it will say INCOMPLETE for all your units until they are
formally released (even if you have had your Moodle grade sections updated - this is a separate system). I dont think I have ever encountered a situation where it has displayed anything else apart from either INCOMPLETE or the grade/number.
I know all of my grades/marks for this semester, yet they still show up as INCOMPLETE on WES. So yeah.. it doesn't mean that you haven't satisfied the requirements or anything... so it isn't a cue that you've failed