Checkbox description not printed

A standard checkbox element with a description was being printed in 8.x-5.0-rc16. But when updating to 8.x-5.0-rc17 the html tags for the description are being printed but not the value.

I only get this:

when i print my element with following code: {{ element.elements.privacy_policy }}

But when i use this code to print the description only, it works: {{ element.elements.privacy_policy['#description']['#text']|raw }}

Not sure if i'm doing something wrong here.