Hey, some things I've noticed, if you upgrade your warehouse even once, you're no longer able to buy or breed a monster.
I would do the warehouse as a whole and not for each monster individually, because you have to spend more money that way and it's just more time-consuming. It's just confusing. And you don't even have to hand in a monster for the orders, you can still complete them and get the money for them.
I'm looking forward to the future