Same here. i'm getting redirected all over the place. trying to book rooms ( and already signed in) I get screens telling me to fill out name/cc ( all stuff that should automatically populate from my profile). completely maddening. website just is not up-to-snuff.
Called my Marriott ambassador to book rooms for me, but on hold now (it's 10:30 P, I get that) for 10 minutes and waiting....