I'm seeing a strange problem with Xcode 7 beta 4 and the iOS 9 simulator. Any app that uses a map hangs when trying to load the view containing the map. It does not throw an exception. If I remove the map, it works. This appears to have a 100% repro, even in a very simple project.
When a map is present, I see the following log output:
/BuildRoot/Library/Caches/com.apple.xbs/Sources/VectorKit_Sim/VectorKit-1134.11/GeoCSS/GeoCSS/StyleSheet.cpp:122 STYL Parse: Decode error here /BuildRoot/Library/Caches/com.apple.xbs/Sources/VectorKit_Sim/VectorKit-1134.11/GeoCSS/GeoCSS/StyleSheet.cpp:99 STYL Parse: Decode error here
A coworker with the same setup doesn't have any problems with the same project.
This problem should be solved with Xcode 7 beta 5. Just download and install the latest build!