Spartan Ops - Episode of Legend Challenge

What’s up with this challenge? I’ve completed all of Departure on Legendary, which I can see in-game and on Waypoint, but it says the challenge hasn’t been completed.

I guess it’s glitched at the moment, because in the game the description says:

“Complete all missions in Departure on Legendary difficulty”

But on Waypoint it says:

“Complete all missions in chapter ID -1 is invalid. on Legendary difficulty”

Has anybody else noticed this?

Yes I have the same issue.

i have also encountered this issue, hopefully they fix it before the challenge is over…