I can't get runkeeper to launch on my apple watch and certain other apps as well. I even tried to unpair and re-pair the watch and set it up as a new watch but the app still won't launch. Any ideas why? I am using the latest WatchOS 2.1. I tried to uninstall and reinstall the app and still nothing. Sigh. This has been an on-going issue for me even with the previous WatchOS.