I'll explain the circumstances and effects of my experience. I was in a pregame lobby (TDM..but I don't think that matters) and I realized that I hadn't checked my Operations yet today. I also remembered that the timer was very low when I was playing the other day, and it had probably run out. This was the case. I clicked on Operations, and they opened up with the message "You have been given new Operations. Your previous Operation bonus has been added to your Squad Points" (or however that message actually goes lol). I don't exactly remember..but either the game started right before, as, or after I clicked Okay. I got a bad feeling as soon as the Loading Screen came up, and sure enough, after the game when I clicked on Operations the only thing it did was make the noise for joining a lobby and flicker the screen. The Operations themselves do exist and work even though I can't see them - I completed the "Kill the top player 3 times in a row" during the next game.
If i click on Operations while in a party lobby, it will put me back to the last screen I had been to: If the Multiplayer Menu, then it will throw me back there; If a game lobby, it will throw me into a [fake] game lobby, where it will say the mode I last played, map choices, and all the normal lobby options (Create a Soldier, Operations, Lobby Leaderboard, etc.), but does not search for a game nor has a timer, and also at the far right of the bar that contains my name it has a "0". I assume this is a score indicator that was not fully implemented, and it reads 0 because I obviously didn't come from a game that I scored anything in/from. I did post this on Miiverse - It let me press the Home Button on this screen. Lastly, if I press Operations in this lobby, as well as any normal game lobby, it does what I mentioned in the first paragraph.
Edit: 1 clarification on the above: It will only put me into the fake lobby if I have gone back to the party lobby screen after a game and then pressed Operations. All other explanations are correct.
Edit #2: When in the fake lobby, if you vote for a map it will register, but no number will change or go up. I found this out by mashing a little (When you're in any lobby and vote-mash too quickly, it will give you the message "You must wait x-number of seconds between votes."). This is the message I get.
I think that's all I got. This also just happened within the last half hour; I thought I'd post all the details I could think of, so maybe some dev can "figure out how to replicate this glitch". IKY out.