The solution is to clear the cache and memory in the APP.
Go to SETTINGS
Find the app in question... HBOGO, NBCSN, etc (anything that requires service authentication from Verizon)
Select "Clear Memory" and "Clear Cache"
Close out of Settings
Re-open the App (HBOGO, NBCSN, etc.) and start anew
For me it it seemed the key was: Clear cache BEFORE clearing data.
(Clearing data FIRST did not fix the problem, rather clear cache FIRST)