Dan, I'm sorry to hear that you are still experiencing issues. We have been moving the time of processes on our end in a bid to eradicate the lag at that time of night. The most obvious culprits that we suspected do not seem to be the cause, and the issue has proved elusive so far. Nothing shows up in the server logs, so we are having to use an elimination method to identify the problem.
I will update you when we have further news. In the meantime I have given every subscriber in your league 100 reward points for the inconvenience you have experienced. They can be used to purchase rewards here:
http://igpmanager.com/play/?url=manager-rewards