Just wondered if you had ever had anyone who experienced what I did. I was dealing with the SHA-1 Sunset thing and re-directed my servers back to Host Gator for my website jackaboutcomputers.com and I lost everything I had done with WPMU.org.
It reverted the them back to Divi and all plugins and everything I'd done with WPMU were gone. That's a crazy thing. I just thought I'd check and see if you'd heard anything like that.