Originally Posted by
navatwal
It only works when logged out, how odd is that!
Bingo!
That's also the solution I found. I just log in to Marriott.com with a different browser when I want to do calendar search. Doing a flexible search for a one-night stay produces useful results.
It's annoying not to able to do a flexible calendar search while logged in to Marriot.com, but at least there's an easy work-around.
My usual browser is the most current level of Safari and my OS is the most current MacOS.