I created a bar chart with 3 bars. The first is 10 and the other bars are 5
Here's the result: http://prntscr.com/ptjyi8
The bars with a value of 5 should have a height of 50% of the bar with a value of 10, but it doesn't
The bug can be reproduced using your demo.
I would appreciate it if you can fix this bug. Thanks!