I have added the following to my first post of this thread…
Important Notice - since February 17, 2019 there have been some users reporting the creation of multiple locations after opening the STSC app with the result of their hub, devices and Automations being separated in those locations. In this case, please open a ticket with ST support. None of the methods noted above will help you resolve this issue. Please note: Do not delete anything at this point but wait for Support to assist. Also, report this issue in the following thread and tag @Brad_ST