My backpack can fit 300 items. However, while questing in Karamelle, I got several notices from Lincoln saying my backpack and bank are full and that I lost items, but when I checked my backpack, this was incorrect, it was not full. I'm wondering did I actually lose items?
P.S. While it's true my backpack wasn't full when I get Mr. Lincoln's notifications, it still has a lot of items so there can be an issue with keeping track of everything. Hence why I posted this. I want to be sure this glitch isn't actually effecting anything. I bought those elixirs for a reason.