Money Glitch
To replicate the problem I simply have to do the following:
Own at least one fort let's say a lvl 1 for simplicity
Check my income which should be 20/hour
Switch cities
Check my income again and it will show 40g/hr. Also the counter at the top of the screen will reflect this fake income change.
This can be repeated indefinately; However switching between cities resets the top counter for my cash to the correct ammount.
Also going to the market or tech center with the right amount of fake made money wont allow purchases. So mostly harmless.