yes, there are little annoyances like that and I pulled up your workout from “All Rides”
346 or 344? Who knows! Good times 
Try riding outside, pull up web interface, turn off elevation display, and use the lap and zoom features
More fun on the web interface - pull up a ride where you worked on sprints. Use power duration to select best 15-second power, and now checkout the summary (upper left):
Since when did 796W equal 781W?