---
title: "Campaign Studio - August 19, 2021"
date: "2025-09-12T05:57:24+00:00"
summary: "Fixed: Email builder now closes properly when adding B email to A/B tests in Campaign Studio. Improved user experience."
image:
type: "announcement"
url: "/campaign-studio/release/2021-08-19/79056-campaign-studio-august-19-2021"
id: "5f334dd2-969e-41de-8f96-896ef76ea38c"
---

*   Fix Users were unable to close the email builder when adding the B email to an A/B test.