@Zapp multiple things are happening. First, on the graph view you have multiple zones that are being graphed and have no data (S03-S07). If you tap them on the legend you will see what I mean.
Also, the way the log data extraction works it attaches the end time to the data point but while the station is running it returns the start time.
I plan on fixing both of these issues by the way just explaining the current state.