I am just doing some maintenance work for this client and I have noticed that there is references to old archived versions of my css eg: http://hammerexcavations.com.au/wp-content/themes/upfront/elements/upfront-newnavigation/css/unewnavigation-style.css?ver=4.4.1
Where are these files coming from? I dont recall setting any archive system up. Worst thing is I cannot override these archive css with updates in the custom css section.
Is this a caching issue? Can you pls help me here so that I can remove these archive versions and stop them from happening again. I only want the site to call upon the current version of the css file.