First time this has happened to me, I was casually jumping to and from systems when when I tried to jump to Azek(*?) the loading screen just stood their, with no progress, I would minimize & maximize the program normally as well.

I was also access the menu, and change options , when I try to get back into the game, it comes of blank.

and I can chat to people.

[edit]

has happen twice now trying to jump to d-11 in Azek.

sometimes sectors b0rk. It's happened to me on numerous occasions, though usually it was a result of something gone wonky in my client, so a restart fixed it. Might want to see a guide about restarting the sector if it happens again.

During our maintenance one of the cluster machines kept rebooting and/or turning itself off. I think the power cable was loose; I tightened all of them. Anyway, whatever sectors it was running would have gone away.

Azek D11 is fixed now.