I've had conflicting advice in this situation: advanced ticket for second train, first train has problems so I miss connection. Train manager on first train says that because I got on the right train and it's not my fault that I'm going to miss the one I have a reservation for my ticket should be honoured. Train manager on second train disagrees, and only through polite arguing that a colleague of his had told me my ticket was valid do I get away with it. Wish I knew who was correct, because it's a journey I do a lot, it's a fragile connection, and the unsplit still advanced ticket is 150% more expensive.