watchOS 4 background mode limit?

It looks like Xcode 9.0 GM and watchOS 4 GM do not show the CPU limit and average in the CPU Report in Xcode -- is the limit removed or is this a bug?


With Xcode 9/watchOS 3, there would be a red dashed line in the CPU Report "Usage over Time" section that represents a 15% threadhold that the app cannot cross and a yellow overlay that shows the average CPU usage as well....


Anyone know what's going on?