The 30 days rule must be either something new or as previously said an excuse. I’ve been looking at my booking for the end of April repo and they’ve only just started coming on in dribs and drabs but last year I booked in March for a cruise at the end of July! My start of July one this year is showing nothing and the app definitely has problems, there is a way to show on the Apple App by clicking on the blank looking box in the top left hand corner. This brings up my current trips.
Good luck