I wonder why Disney needs online check-in at all. It was started during Covid when we had to produce all of the shot and test documents and it was sensible to minimize face-to-face contact at the port. But now, all we're uploading is a passport image and a selfie, both of which are often randomly rejected, as previous posters have noted and then waiting weeks for "approval", adding needless stress.
On our last two cruises we had to go through a process where we lined up to get all of our documents got reviewed by a live person behind a counter. This is after we had done online check-in and received approval. At Port Everglades on our last cruise we had to do it twice because there were "computer problems". I don't see how online check-in serves any useful purpose beyond needlessly aggravating passengers.
Check-in at the port used to be a quick (maybe five-minute) process and worked seamlessly. I don't see why Disney can't return to that. They can allow us to choose PAT's when we register for a cruise. All we have to do then is show up on time, have our documents quickly reviewed, and board the ship.