Ketchup, is there something in the mod that's identified as coal but is not coal?

My general stats panel shows that I currently have 678 coal but the town hall inventory panel says I have none, anywhere. This is causing a problem because my miners will only mine coal until the limit in the general stats panel is reached and whatever this stuff is, production of it is outpacing actual coal quickly. As such, I can't produce coal or only produce it in small amounts by continually raising the limit until whatever this other stuff is reaches it first.

[Everything previously written here is no longer relevant so I deleted it]

EDIT: I see a similar thing happening with stone totals. In the general stats panel I have about 800 stone, combined, but the town hall inventory panel shows a total around 400, which I assume is the number for actual stone taken off the ground or from a quarry.