Caching solutions will store static versions of your website in a cache. This allows WordPress to skip running heavier PHP scripts every time your site loads.
There are several different types of caching solutions available for WordPress.
1. The most popular method is using a WordPress caching plugin.
2. Depending on your hosting provider, you might already have WordPress caching built in. For example, managed WordPress hosting companies.
3. If you’re using a web application firewall like Sucuri or Cloudflare to improve your WordPress security, then there’s also a cache to speed up your site and reduce downtime.
4. Finally, most modern web browsers will also store cached versions of pages on your web browser.
Sometimes the cache won’t realize that changes have been made to your WordPress website. Instead of loading the new version of your site, you’ll be stuck seeing an old version. This will prevent both you and your visitors from seeing any updates you’ve made. Sometimes it conflicts with other cache plugins or systems and causes unexpected issues like in your case.
So you have to check, if you are using multiple cache plugins then try to use only one. If you are using the cache plugin and it has the Minify CSS option enabled then make sure you are not using the same option from Theme Settings >> Speed Optimization to avoid the conflict and this is the same for the rest of the options as well. If you are using the server-end cache like lightspeed then try to contact your hosting provider and ask to flush it completely for you.
