Initially.*
Hey, bit of an annoying bug here. Fixable, but annoying nonetheless.
I decided to bite the bullet and use 25 of my moonstones to expand the mine, thinking it'd give me more of a guaranteed chance to smelt 3 bars (copper and iron sometimes don't perfectly fall into multiples of 5). Thing is, I expanded it while my wolf was already traveling to mine more ore. I came back to the mine after it was all mined, but noticed that the 5 inventory slots I had purchased had not been used.
I tried refreshing, but it didn't work, so I'm assuming it's not a clientside problem. So after going to smelt the ore, and traveling back, it seemed to work. But the initial purchase didn't. It's not a gamebreaking issue, but is there any chance that the mining cart's space can update immediately when it's purchased?
I haven't upgraded the cooking space yet, but I'm assuming it might have a similar problem, based on this experience. Apologies if my assumption is wrong.
Pics below.