I’m just wondering if anyone is having this problem on iOS 13.1 Public Beta 3. I submitted a report to Apple.
When saving a location to Favorites or My Collections, the saved location is not synced to Favorites or My Collections in the Maps application on other devices that are logged into the same Apple ID for iCloud, even when each of the devices has the Maps switch toggled to “on” in iCloud settings.
When saving a location to Favorites or My Collections, the saved location is not synced to Favorites or My Collections in the Maps application on other devices that are logged into the same Apple ID for iCloud, even when each of the devices has the Maps switch toggled to “on” in iCloud settings.