How to programmatically update a wpcf- custom field for a post?

Trying to use it like this:
update_post_meta( $post_id, ‘wpcf-my_field’, “testing this out” );

using a custom save_post hook and it’s emptying the field.

If I abort right after I do the update_post_meta it’s saving to db…

Is there a way to tie into the wpcf save_post hook so that it doesn’t override my update?

https://wordpress.org/plugins/types/