For a while I've been able to add a bunch of photos to the Simulator via drag and drop. (completely essential for photo apps) It just hangs the simulator now. Is this working for anyone?
Xcode 7.1 beta 3 IOS simulator add photos
It should be working fine. Note that if you are adding a bunch, you'll need to wait for all of them to be added to the camera roll before Photos launches.
If you have issues, try using the command line to add them:
xcrun simctl addphoto booted /path/to/images
--
Is Simulator.app unresponsive?
Can you take a sysdiagnosis when in this state and attach it to a new radar please? http://bugreport.apple.com