iOS ShareContext tapping on Suggestion Intent property of extensionContext is nil

Question

I have a ShareExtension in my iOS app. I am trying to use Suggestions. I can successfully 'donate' the intent using the following code from the apple developer website:

let groupName = INSpeakableString(spokenPhrase: "Juan Chavez")
let sendMessageIntent = INSendMessageIntent(recipients: nil,
                                            content: nil,
                                            speakableGroupName: groupName,
                                            conversationIdentifier: "sampleConversationIdentifier",
                                            serviceName: nil,
                                            sender: nil)

// Add the user's avatar to the intent.
let image = INImage(named: "Juan Chavez")
sendMessageIntent.setImage(image, forParameterNamed: \.speakableGroupName)

// Donate the intent.
let interaction = INInteraction(intent: sendMessageIntent, response: nil)
interaction.donate(completion: { error in
    if error != nil {
        // Add error handling here.
    } else {
        // Do something, e.g. send the content to a contact.
    }
})

This works fine and I am able to see my app icon in the suggestion row on the top for each conversation. However when I click on the suggestion, the intent property of the extentsionContext is nil:

override func viewDidLoad() {
        super.viewDidLoad()
        
        // Populate the recipient property with the metadata in case the user tapped a suggestion from the share sheet.
        let intent = self.extensionContext?.intent as? INSendMessageIntent
        if intent != nil { // this is nil despite selecting suggestion
            let conversationIdentifier = intent!.conversationIdentifier
            self.recipient = recipient(identifier: conversationIdentifier!)
        }
    }

My ShareExtension plist is as follows:

The other odd behaviour is that I'm able to do the donate from the main app but not from the app extension. In the main app the only relevant entry in the plist is the same NSUserActivityTypes entry. Not the NSExtension entries.

My understanding is that tapping on the suggestion, the extensionContext should contain the intent.