A shout out to those of us having icon problems. Finally, got an email from Roku support.
ROKU Technical Support
12:01 PM (1 hour ago)
Good day !
Thank you for contacting Roku.
Melissa let’s try refreshing the network.
1. Unplug Roku power from the wall
2. Unplug router power from the wall
3. Unplug modem power from the wall
4. Wait for 2 minutes before plugging back in reverse
5. Plug modem first and wait for a steady green light
6. Plug router next and wait for a steady green light
7. Plug Roku back last
Roku Support Group
This actually worked for me. Hope it works for you too.