Loving the new North 7, but it certainly ups the ante on required resources. After waiting forever to get 26 glass panes(first merchant brought 25, then nobody for years ;) )I finally got my glass factory up and running, but it seems glass now requires potash. The wiki says glassmakers will make it themselves, but all I get when I employ one is the Resource Unavailable icon.They have plenty of sand and charcoal. I have tried to purchase it, but it’s extremely expensive for my little town. Any idea what I am doing wrong?