We're seeing a problem where, on initial startup of the app in either the simulators or a device our mapView isn't rendering. We just see the annotations, but no map. If backgrounding/foregrounding the app at that point, the mapView will render. This only happens in iOS 11. We don't think we're doing anything particularly out of the ordinary. We do use a helper delegate to handle all the map-related functions, off the main view controller. But that's it.
We've run the WWDC 2017 mapkit clustering sample, and that works fine.
Has anyone experienced this? Thanks in advance