Minification Hiddes my Images; Turning it off wont help

Hello and thank you for your time!

I activated Hummingbird's minification function and it hid the images on the homepage of my website. I deactivated it & clear cache but they won't appear again. When i click the "see this page unminified" option from admin bar images appear again. However for visitors they are hidden. How can I reverse what the plugin has done?