Well, I did not update this project. I get the same errors when I create a new blank 4.22 Unreal Studio project. And this happens since I updated the P2 and P3 and as I said updated the Plugins for 4.23 as outlined in my post above.
I re-installed the plugin and everything is fine now but I think there was a bug somewhere during the Launcher Update process but this is hard to track down for me. Anyway, I just wanted to point you to the problem I had 