Spartan Ops Load Issue.

Anyone having difficulty with Spartan Ops loading correctly? I am able to select the mission I want to play and the countdown timer gets to zero then as I go into the loading screen I get kick out to the main menu. This has started in Episode 3. I have played the previous 2 episodes without issue. This happens when I am trying solo or with a group of others. Anyone having a similar issue or know the cause/way to resolve this problem?

I have deleted and reinstalled Disc 2 but this did not resolve the issue.