Crafting Bug (charcoal oven)

Hello I´m new to the game but I think I found a bug: I´m trying to make a charcoal oven and it´s saying that I need a small metaltank to craft it while I have one in my inventory and one is lying right beside me. In the end I am not able to craft the charcoal oven.

Is any of the tanks empty? Tank has to be empty for crafting.

Both of them are empty

Silly question but is the requirement for “little” or “small” tank? Asking as I just mistakenly made one instead of the other.

Well, I´m german and play the game in my “standard” language and it says it requires a “Kleiner Tank” which can be translated both as “small” and “little” so I think this could be the problem.