Alex Pankratov :
Mar 30, 2018
This preference is stored in %LocalAppData%\Bvckup2\ui\bvckup2-ui.ini file, which the program reads on launch.
If this setting gets unchecked, it means that .ini is getting wiped, which in turn is typically done by an overzealous antivirus. I'd dig in that direction.
If this setting remains checked, but the program doesn't start minimized, it means that the program is auto-started _twice_. In this case the second launch will act as a "show yourself" signal, so the window will restore itself from a minimized state.