Cached php? Updates are rendering only if logged as admin

If you have wp-cli installed : https://wp-cli.org/
You can try a wp cache type command from the root of your folder.

If you get Unknown it’s a plugin issue or a mu-plugin issue I think.

If it’s Default, there is no WP cache plugin (I’m not really sure about that but 90% sure).

After that you may grep for ‘WP_CACHE’ from the root of your project.

grep -Ri 'WP_CACHE' *

You’ll be able to delete this constant and remove the cache folder. Things going to work. (I hope for you)