Ok, just booked for a party of 9, and had to do it as 7 and 2. Different reservation numbers obviously, but made both while logged in under my rapid rewards account.
I got both email confirmations, and if I click My Itinerary in either email, it displays everything properly on the website. However, if I just go directly to the website (not from the email), it looks like it's only showing the one reservation that contained my name.
Is that something to be concerned about? Will it make checking in 24 prior cumbersome?