Halo campaign glitched

I just completed the entire campaign solo on legendary but in my campaign progress it says I’ve only completed 5 missions, please tell me this is just a bug as I really don’t want to do the last three missions on legendary again.

I did it on heroic solo and it’s the same for me 5/8.

Same here, and its even worse, its only says i completed mission 1, and partially did mission 3.

At least you can play your campaign, I can’t even play it