I have sent emails via automation with one emoji in the title successfully.
I recently added a second emoji for a message. That message never gets sent. Took me a while to notice.
In attempting to send the message manually, I was given a very helpful warning along the lines of “cannot send message with 2 emoji in title”.
I understand why this kind of warning wouldn’t be present before an attempted automation, but it would be very helpful if this was explicitly mentioned on the automation interface rather than simply failing and leaving users guessing why.