Weird credit loss/ glitch

So I was playing Spartan Ops and after we finished the mission we got all the right cutscenes and it said Mission complete. And after it loaded it went the the screen like we were in the lobby again with all the same people and then that screen exited to the main lobby window. I was a little frustrated. I didn’t get a message saying that I hit the credit limit or anything like that. And I just made it to my first specialization today too.

Has anyone else had this happen or heard about this happening?