Typically, you’ll ride a workout on EBC under ERG control (AUTO) and leave the workout player pages displayed as you posted above. That means the standard rainbow gauge or power chart above with timers and workout controls below.
The other pages are optional to view while you perform the workout.
That’s close enough to get green checkmarks 
when comparing scheduled vs completed XSS. That’s all you really care about. The bucket values don’t need to be exact to achieve the target for the day.
They’ll always be some difference between calculated XSS on the apps’ fields versus the second-by-second analysis performed on the XO server when the FIT file is uploaded.
Larger discrepancies between XSS recorded versus workout targets can be explained by trainer responsiveness during interval transitions. This varies by trainer brand/model and flywheel weight. This is most obvious on short spikey intervals as in this example:
Note the delay to target watts at the start of each interval. If you have a long set like this, you can see why high/peak pts will be short of workout targets.
Other times it won’t matter much because the delay to target watts is compensated by an equal delay to rest watts as the interval ends.
You’ll see this best when you disable power smoothing on your KICKR so you can tell what was actually produced.
If there is a significant high/peak XSS gap at the conclusion of a workout you may choose to deploy XMB (Magic Buckets) to the fill any gap. 
During cooldown swipe to the Low/High/Peak buckets and, if necessary, top them off by changing to Slope mode and executing a few intervals on your own. You may need to extend the cooldown interval while you do this by tapping << on the player screen.
Another cool way to use XMB is to switch to it when you’re not feeling up to completing a structured workout under ERG control. Instead, swipe up, Stop, End Workout, Continue, switch to Slope mode, then swipe to the XMB screens (upper and lower pages), and follow XMB guidelines under your control at whatever difficulty level you willing to go that today.
For example, let’s say I’m at 2.5 stars status and select a 3+ diamond workout, get halfway in and cry uncle. I could lower % intensity and slog it out, or switch to XMB intervals to fill the buckets.
