IOS Chat SDK: Message Field Disabled After Sending Image as First Message

We are currently using the Zendesk Chat SDK for iOS and have followed the integration guide provided by Zendesk Chat SDK .

One issue we’re encountering is that if an image is sent as the first message, the message text field becomes disabled. This behavior is consistent each time an image is sent as the initial message. 

In contrast, the Android SDK does not allow an attachment to be sent as the first message, which is the correct behavior.

We are using the built in UI not the custom UI