Coming into the chat with the old man, where Synthesis unlocks, I had 1 healing potion in my inventory. Synthesis opens, and he asks you to make a potion. Only thing you can make is a healing potion. When complete, the counter stays at 1, instead of rising to 2. Then later, during the attack on your home, Melisa gives you 5 mana and 5 healing potions. I had 3 healing and 2 mana potions made prior to this gift. When I first went to use a healing potion after beginning the orc fight, my counter was 5 for each potion type. The counter worked correctly as far as I could tell other than in these 2 instances.