[0.13.5] Earned "Iron Throne 1" even though undeserved

[Jupiter]

I loaded up my SP map and instantly got the Iron Throne 1 achievement even though my iron plate production is just 500/m.

My first guess is that I had 20k iron lying around somewhere so the count of iron in the map instantyl jumped from 0 to 20k+ so the game sees that as production.

I posted no log file because it didn't mention anything related to this.

[kovarex]

500/m is 30 000/hour so it is enough.

[Jupiter]

Oh right. I'm sorry.
I thought the achievement was 20k/min (which many youtube streamers easily surpass).