I have 2 Roku TVs that are essentially useless now because they keep restarting and are stuck in a loop trying to logout as guest. One TV is Insignia Roku. The other is Samsung with a Roku stick. I need this resolved asap. I have guests arriving tomorrow. I left a message with Roku support because there is no way to get a live person on the phone. This is like the Microsoft upgrade fiasco. Roku's developers have to get on this asap! Millions of customers probably have been affected.