After a full playthrough I decided to sit on the game a little longer (I love dragons and any content on them I will accept) and at some point I caught a drop in minus food. no money is being credited because of this. Perhaps this is how it should be, for besides buying the capacity expansion there is nothing else. This is not a lesson to the author or anything negative, just caught a funny moment ^^
update 1: also noticed that there is a bug with the belly model, it starts to break and deform, on and off the function to reduce the belly does not help (and sometimes breaks and the second form of the dragon belly). Also there is a kind of cap with coins and because of this, some skills are not possible to pump, as this cap is many times less than the required amount of money
