Seen something similar on iOS mobile app. Typically I prefer to browse for a property by map—all properties, unfiltered regardless of availability. The app now appears to automatically filter based on some default date (current date?) and availability, without an obvious checkbox to disable. Incredibly annoying as I also thought some properties left Marriott when they didn’t appear on the map. The website seems to be a viable workaround, but the navigation/pan/zoom is abysmal compared to the app.