Curious if that's really the only thing that was fixed...

That same mission will:

• spawn the same amount of shriekers regardless of difficulty

• Fail to complete for the operation even if you succeed

• Score only 1 star even if both objectives are completed

• Not allow you to complete one of the objectives unless you:

  • precisely call down the dark matter in the middle

  • Carry that exact dark matter to one of the drills

  • Input the same dark matter without dropping

And, If you drop the dark matter at all, or do not call it down in the middle, it won't count as complete at the end mission screen.