Help text isn't pulled through to the form

Problem/Motivation

Any help text added to the field isn't pulled through to the form where editors select the view mode.

Steps to reproduce

• Add a Paragraph view mode field to an entity - In my case a paragraph
• Add some help text to the field

The next steps are specific to the site I'm working on.

• As a content editor add a new piece of content to the site
• Add a new paragraph via the entity reference field on the above
• On the new paragraph form see there is no help text under the view mode selector field

Proposed resolution

Get the help text to display.