File - Options does not work. It doesn't open option window.

Unless they post a copy each updated beta supersedes the previous ones. There is no option to go and currently it wouldn’t open as its now past its expiration date.

Most likely you are using external and/or multiple monitors. Scrivener tries to preserve the windows’ locations, but if a monitor is removed or turned off, there is a Qt bug which restores the dialog window on the removed monitor. This has been fixed and will be available in the next update. At the moment, I am afraid - ALT + File > Close Project and Clear Interface Settings is the only workaround.