I have found that when trying to collect the rent from property 8 (dark blue) and you expect to get the unknown error, DO NOT click on the collect button. Click on the window "x" button instead. The rent gets added into the totals properly and don't seem to get the unknown error again until try to collect rent for property 8 again.
Not a real fix of the bug but has been a good work around for me.
Thank you both
I occasionally get this "error" message when I enter the Monopoly Sudoku game - it won't give me credit for the "rent." Very frustrating. I know a lot of people have this problem. I use Chrome browser. This problem needs to be fixed if you want people to keep playing this game.
