Dan Knauss on "[Plugin: Remove WP Branding] BUG: Plugin eliminates WP Admin Contextual Help"

With this plugin active, regardless of its settings, it eliminates the built-in contextual "Help" tabs in the WP admin.

https://wordpress.org/plugins/remove-wp-branding/

This was addressed in v 1.0.5 - If you update now there is an option to tu that on and off.

Great! Thanks for the heads up.