Mailer To Field Twig No Longer working after update

[matthaltuch]

Description

Recently updated to the latest version of Sprout Email (from Craft 3 to Craft 4) and I have transaction emails that will no longer work with Twig in the mailer to field.

The example of what I have in the mailer to field that worked in Craft 3 is:
{% for authors in object.authors.all() %}{{ authors.email }}, {% endfor %}

This no longer populates anything into the to field so no transactional emails are being sent, if i hard code and email in this field emails are sent but the when trying to use any Twig loops in this field no longer works - the field still states that "This can use Twig Shortcut Syntax and reference Notification Event variables."

is there a different option for populating the To field based on the object variable data?

How to reproduce

Use a twig loop in the Mailer To field to dynamically pull in the recipient email address that should receive the email

Sprout Version

Sprout Email 4.45.0

Craft Version

Craft CMS 4.10.7

Database Type Version

MySQL