As it says in the title, today after updating I noticed that whenever I buy a hex it takes all of the coins from my inventory, not just the amount required for the purchase. This happens when I buy hexes using the hotkey or when I buy a bonus in the catalog by clicking the button to unlock it. I haven't tested upgrading bonuses, but when I buy a hex by entering the core's menu and then purchasing it there it takes the right amount of coins from my inventory. I'm still very early in the game, it's possible that this was happening on 1.5.7 but I think I would have noticed it. It's also possible that this is a mod conflict, but I don't know. I can try going back to 1.5.7 to test things there if you need. :)