I put a manufacture unlocked LG G5 phone on my line. It will not work with any of the Verizon applications but most importantly my cloud storage. Which tells me that I requested that my access be removed.
Even though all the Verizon Apps are available in the Google Play Store. Do they only work with devices purchased through Verizon?
My advice - skip the Verizon cloud and use Google for your backup on the LG G5 - for apps, for contacts, for photos...Google is available to you regardless of carrier, and is more flexible (IMO) than Verizon cloud.