Hummingbird's Minification and gravity form bug

Hello,

I have a problem with Hummingbird's Minification and gravity form (with logical conditions).

When the Hummingbird's Minification is active my forms aren't visible, when I turn off the Minification it's ok but where the problem come buggy is when I test every file (js and css) with the different method and the forms aren't displayed.

When I turn off every method (Minify, Combine, Footer) for every files the forms aren't shown, I need to turn off the plugin or the Minification for display the forms.

have you any input about this bug !?

Thanks for your help.