Spartan Ops challenges counting too far.

I just spent a couple of days trying to complete all of the Assault Ops in Spartan Ops on Xbox One but I still don’t have the achievement. I’m stuck at 88/90, and the only two I supposedly haven’t completed are for mission A-1, Assault Ops 1 and 3. I have 111/3 and 210/50 respectively. Every other one shows the correct completed value.

Is there any way to fix this? I’ve read that there used to be issues when moving between platforms, but the Xbox One version is the only one I’ve played.

EDIT: Nevermind, I used the workaround in this post to get it: