We wake up this morning to form emails from the Australian Department of Home Affairs informing us that our Digital Passenger Declarations (DPD) are incomplete. That's one of two forms required to be completed via APPs, the other being the Electronic Travel Authority (ETA), the visa we've become very familiar with.
The DPD encompasses our health information. We could see nothing wrong but we retook the photos of our CDC vaccination cards and uploaded them. We immediately got automated emails informing us our DPDs were now complete.
We'll hope our future trip experiences with government forms continue to be successful.