I was able to resolve this by setting my Roku Ultra back to factory settings. It guided me through a whole new set up which went very smoothly/quickly. Unfortunately I then had to enter sign-in and password for some of my apps but not all.
My apps either load very, very slow or fail all together. Never happened before the software version 14 upgrade.
I am having this same issue, not a single app will open and has been this way for a couple hours.
I have the Roku Ultra (4670X) and not the Roku TV. But I have read the same thing is happening to the TVs. I tried using the chat support, but the person seemed distracted and never really listened to my problem-solving items. I restarted, checked the network, and checked for any software updates. Support kept asking me to do those same things again. Also, they suggested I unplug the TV. Keep in mind I had provided them with the fact that it was the streaming device and NOT a TV. I ended the chat. I will wait and see if this gets resolved. Meanwhile, I will be looking at other streaming devices.
