Hi folks, I've had my Davis Vantage Pro2 wx station for years, but just recently got a WeatherlinkIP logger, and have tried using WeatherCat. After a few novice glitches, it seems to be working now, with the exception that when I shut WC off, and then turn it back on some time later, it only backfills the historical data at start-up if it has been shut down for a long time (like several hours). If I shut it down and restart it after only a few minutes (and note I have 1-minute logging frequency), it does not load the missed data. And once there is a gap, even if I successfully get it to load later historical data at a later time, it does not fill the gap. I know the data is on the logger, because if I shut down WC on my mac and open up Weatherlink software on my wife's PC laptop, I can get the data. I haven't figured out the exact threshold of shutdown time that prompts a successful historical backfill at start-up. I know it hasn't worked for a 30-minute shutdown, and it has worked for a ~6-hour shutdown. So, maybe 1 hour? Not sure. Has anyone else noticed this? Also note, I have the option to delete historical data on logger after WC download turned OFF.