I'm in FNQ & I have watched Aus Post stuff on their tracker, it only shows the last place it was scanned.
It may have been scanned in Perth & then put on a truck to Brisbane via several other stops.
Once it gets to Brisbane (Usually Redbank, first stop in Qld) it will be scanned again as it is sorted to go on the next leg for distribution.
My stuff often takes 2 days to get from Sydney to Redbank & the 3 days to get to Cairns & then another day to get to Malanda.