Abbasid dynasty - stone not appearing as secondary resource to trade

After researching ‘Great Bazar’ technology, it is possible to select a secondary resource in docks and markets to trade with gold. However, stone does not appear as an option, only wood and food. When toggling among resources, in wood description it says, ‘Click to change to stone.’, but the resource changes to food. It is not possible to trade stone this way.

Played in nearly all maps in player vs. AI matches. This bug appeared in all, regardless of map, victory, and game mode conditions.
Game version:

Thank you.

1 Like

I found the same thing as well

It doesnt appear on purpose to stop abbasid and french to spam keeps.It was available at older versions of the game.