X button disappeared on iPadOS 26.4 in MFMailComposeViewController

I’m using MFMailComposeViewController to send emails from my app. Since updating to iPadOS 26.4, there is no way to cancel the mail composer because the “X” button in the top-left corner has disappeared.

On iPhone with iOS 26.4, everything still seems to work as expected. Is this a known issue, or am I missing something?

Has anyone else experienced this, or found a workaround?

X button disappeared on iPadOS 26.4 in MFMailComposeViewController
 
 
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