It is random. Restarting Windows should help and dont start game immidatelly. There are some prosesses in background that should finnish before start I guess.
I am using Linux Mint and i also can only sign into game , but nothing happens when I press start button.
Xsigncode is the cause of that, it prevents SB to start.
Well, that means that you cannot uninstall it,because you didnt install it, it will remain on your hard disk... forever.Unless you delete SB folder manually.
That happens to me... often, but usually i see desktop after that.
Solution? In order to play this game your PC must be in perfect condition, otherwise you will struggle with it.
Best solution is to buy new PC.
There were suggestion that all equipment should be accessable at lvl 60 (50 and so on). So you can use for example Kappa Suit at lvl 50, not 55 . That way leveling wont be so important part of game.
Another problem is when PU activates Firing Squad, which means that she cannot move, but still can be pulled by WH.
And that is not the way Firing Squad should work.