Multiple people reporting that all their devices, including their hub, have been deleted from their account, along with all of their rules and routines. Even though some of things still showed up in the IDE.
It has been acknowledged as a known issue caused by a platform operation, but with no available, helpful resolution other than rebuilding everything from scratch. And even then some people are saying that they are not able to rebuild. 
It’s not everybody but it’s more than just a handful. Acknowledged on the official status page now.
The status page says they will give affected users instructions on how to restore functionality, but so far the instructions have been to rebuild from scratch. 
This is the email that some affected users received this morning:
