Think you are using some cache of minify plugin. Please clears their cache and this will force your site to use the latest css and this should fix the issue.
I think you should deactivate the cache plugin and see if that helps. But in most of the cases flushing the cache should fix the issue.
If this still doesn’t work, any chance you can send me your wp-admin details at dnesscarkey (AAATTT) gmail (d00t) com ? I will check and try to fix it from here.