Resilio would always start silent or minimised after a OS reboot but ever since upgrading to Windows 10 Fall Creators Update (FCU), it always starts Open.
If you close/exit the app from the system tray and reboot, it will start minimised only ONCE, but another reboot it returns to opening a full window.
This is repeatable every-time on both my machines with the latest build but doesn't exhiibit the same on a PC running latest Windows 10 build without FCU.
Very annoying and possibly very easy to fix for the devs.