Need a mission on hard, allready done

I decided to do some SC2 , did all of the missions on hard. But the system didn’t pick up one hard mission i did called “Belly of the beast”. In campaign it shows as intended, that i completed it on hard, but in the achievement section it’s the only mission i need for the achievement and i think this is a bug.

I think that it is a mission where you have to choose between 2 options, right? Did u check archives and did both versions? If you did, and it’s still not recognizing, it might be a bugg, i had some bugg in first 2 campaigns too so it wouldn’t be something new :confused: