"Successful" interdictions are failing around 40% of the time right now. I'm not sure what's up with that. This isn't people combat logging. It's just interdiction success, and nuthin'. On going back to SC, ~90% of the time, the interdicted CMDR is still there.
Not quite sure what you mean, but the servers are being absolutely hammered right now and I think it's causing some oddities. It should settle down in a day or so.