Joomla 4.2.8 (current stable at time of writing)
What does the button Reinstall Joomla! Core Files actually do? What are the 'core files'?
I am experiencing some issues on my site and I've seen this as a suggested resolution.
I'm not sure if doing this will have any other adverse affect on my site?
My site is pretty standard, no overrides or customisations (apart from css). I have several third party plugins and extensions installed.