selectedMessage() is not triggered on message select in simulator with Message Extension

Question

I am attempting to trigger a message content specific segue on message select with my messages extension. I am using the following function override:

    override func didSelect(_ message: MSMessage, conversation: MSConversation) {
    print("selected a message")
    print(conversation.selectedMessage?.url)
}

This function logs the selected message in the origin message after sending. However, when I change to the recipient thread in the simulator and select the message, my didSelect() override is not triggered.

Additionally, if I return to the origin transcript after this, the didSelect() override is not triggered either.

I was under the impression this override should trigger on every message select, regardless of the context.

API Docs: https://developer.apple.com/reference/messages/msmessagesappviewcontroller/1833298-didselect

THANKS ALL!!