After power failure, starts fresh
After power cut, the activity does not continue where it got left off, instead starts from beginning. As a result, the activity is shown as incomplete

Many thanks for your suggestion and support for TrainingPeaks Virtual.
I'm delighted to say that TrainingPeaks Virtual already fully supports quickly getting back to the right place in your workout after disruption. Simply re-start your workout and then use the hotkey TAB (or the menu buttons in the pop up action bar at the bottom of the screen) to fast-forward through the previously completed intervals to get to the right place in just a few clicks.
Also, the hotkey SHIFT+TAB will take you backwards through the workout should you wish to do a section again!