MIME errors / 404

Hi there, I have a reoccurring issue with the CSS files being 404 when caching is enabled on several sites. It works for several days, and randomly stops working with the files getting jumbled and throwing MIME errors in the browser. In the WordPress dashboard, the page is looking correct. When trying to access the same CSS file, it shows up, but not when logged out. However, when I purposely log into WordPress and go to the page where the issue is happening, it suddenly changes the 404 to 200 and works again for both the logged in user and the web visitor.

404

https://valyou.biz/wp-content/uploads/siteorigin-widgets/lsow-button-default-d1a65931fb86-90.css

I tried disabling minification of css, js and html but I still get the same issue. Any idea what this could be?

• This topic was modified 1 year, 2 months ago by tech22k234.

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