The last two nights my offline trader has been logged out before morning. I don't know when. I know they've been working on the lag problems (FV) and there are issues today with the launcher. Have there been server restarts or is my offline trader problem something else?
Yes, there have been restarts and bad lag, etc I would not look to your trader yet. You can always check if it was your server by: Typing in /up or /uptime and it will show you 2 lines of times for how long the world and the zone your in have been up. So you can see if there was a disruption on the servers while you were in offline trader mode