Can you post a picture of your FP window?
Not easily, I’m on an iPad. Not sure how to screen capture from it.
However, I’ll detail what happened to me.
Both trips are at YC, no offsite days or extra CL FPs or anything. Trip one has an extra night at ASMu before it since we don’t arrive until midnight. April 18 @ ASMu, April 19-22 at YC. Trip two is May 17-20 at YC.
At 60 days from the ASMu checkin date of trip one, I booked FPs for 4 days, April 19-22.
At 60 days from the checkin date for trip two, I booked FPs for 3 days, May 18-20.
Then a couple of days later, I tried to modify some trip two FP and add FPs for May 17, and noticed the window was now closed and I couldn’t make any trip two changes to my existing FPs. I can still modify FPs for trip one.
Trip two window is still closed, and when I try to add FPs to today or to any day in the 30 that are open, including April 18 which is part of an onsite trip, I can select the date and park, but then I get the generic “members of your FP party need attention as they have reached their FP limit for this day” error screen, same as if I was trying to book a 4th FP day-of when we hadn’t used the first three yet.
IT, the general internet help desk, DSS and the AP support line have all quoted me the rule about APs being limited to 7 days of FP (although a few did mention that a single longer trip could have up to 14 days) and said that I’ll be able to book the additional day of FPs for trip two once I use one of the trip one days.
My trip two opened, so I can’t in all honesty say that it’s just that second “non-split” stays aren’t opening. I got a few days booked for trip two, I just got stuck once I had 7 days of FPs in total.