I've had the same Triple Play Fios package for 6 years, with no changes.
Perhaps it's time for ME to make a change... like cancelling Fios and going with another provider who has better mobile device support.
I'll take your advice, however, and make one more attempt with the Fios TV app folks telling them of this latest development. Might take a while to post what happens, as they don't seem to respond for 2 or 3 days.