Two common caching issues that can effect Fomo
#1 - Cache Plug-ins
Many premium Wordpress themes come with caching plugins, this is because caching usually improves page load time, and can create a better user experience. However, it can also cause issues with 3rd party apps that are trying to retrieve or update data.
The two most common ones we've seen are WP Super Cache and SG Optimizer (SG Cache).
SG Cache usually displays a permanent button on your top navigation bar within Wordpress to purge/clear the cache.
Most other caching plugins can be found under the Settings tab from the lefthand admin menu, and then you can follow their respective flows for clearing the cache.
#2 - Browser Cache
If updates are reflected in the browser, wait a few seconds, then refresh your page. If you don't see the change, try manually clearing the browser cache.
If you use Chrome, you can do this by visiting this URL:
=> 'Clear Browsing Data'
=> only the 'Cached images and files' box needs to be checked, otherwise it will log you out of other sites that have your email/password saved in the browser.