Hello,
So I researched Ancient Machinery because I'm in the middle of a war and I was tired of building rams again and again and just wanted reusable catapults.
The problem is... I can't build Siege Workshops in my cities, even the ones which have a size of 6+ and a carpenter.
I don't even see the building when I remove the filter "displays only available buildings" : it is simply not listed at all.
The only city I'm able to build catapults in is a city I just conquered that already that already had a Siege Workshop.
So am I missing a requirement here ? Or is it a bug ?
I'm attaching the save file.
So I researched Ancient Machinery because I'm in the middle of a war and I was tired of building rams again and again and just wanted reusable catapults.
The problem is... I can't build Siege Workshops in my cities, even the ones which have a size of 6+ and a carpenter.
I don't even see the building when I remove the filter "displays only available buildings" : it is simply not listed at all.
The only city I'm able to build catapults in is a city I just conquered that already that already had a Siege Workshop.
So am I missing a requirement here ? Or is it a bug ?

I'm attaching the save file.