iOS Send Button Disappears


I have integrated Intercom into an iOS App. However I have noticed when the user enters the Intercom chat and types a message, the “Send” button disappears.

This is only on a device. On a simulator it is fine. Also, the button is there since if I press in the area it occupies, the message is sent. This is on iOS 13.5.

Is this a known issue…?

Kind regards, Joel