I just got a new MacBook Pro (14") with M1 and while I'm loving it so far, I've stumbled into something very weird in Messages. Where the UI used to show a list of recent conversations on the left side, after updating to MacOs 12.4, Messages now has a jumbled mess of things on the left side and no recent conversation list. I have "Shared With You" completely shut off, but this state persists. It displays a variety of items, including photos, documents, etc. which I think may have been Messages attachments in the past. I somehow got it to go away and show the recent conversations list again, but I don't know how I got rid of this or how it appeared to begin with. Any thoughts?