Hummingbird Minification Bug

Hi guys

I'm using Hummingbird to try and ensure our site is as speedy as possible. However, I'm experiencing a bug where when we run the 'Check Files' (https://puu.sh/zg8kI/40970fe7ff.png) test, it then resets all of the options I chose for the JS/CSS.

For example, I set some files to be combined, or in the footer etc, but after running the checker, it resets them back to default.

I'm hoping you could provide some advice on this or whether I'm incorrectly saving the system.

I am using Google Chrome, and have tried this on other browsers (cleared cache), but to no avail. Furthermore, I am using advance options in this process to choose if my file should be in the footer etc.

Thanks