Known issue by Marriott IT I was just told. They have known about it for 2 days. Not impacting everyone but LOTS of accounts are impacted. I tried on IOS, Android and Windows all are failing. App not working either. I can't use my suite awards without calling. Still then you can't see what types of rooms are available. I also have 1 reservation I need to cancel. Have no Clue the date by when I need to do it. Over 48 hours and they can't fix it. I see now they have tried to add this:
Can't believe the Lurker wouldn't be aware of it by now, but not surprised by anything Marriott.