all good / resolved
UC Software Version 5.4.4.2473 Updater Version 5.6.4.2075
noticed somehow it was sill using an upgrade server field rather than using the provisioning server (and clear upgrade server was grayed out already)
toggled it from poly>custom, rebooted, custom>poly, rebooted,(cleared my web-browser cache chrome50), poly>custom, rebooted - then clear showed up
(for extra measure changed all referenes i could find/grep for in my 5.4.4 http directory, but may have not been necessary at that point - tired of all the rebooting by then so figured i'd tackel both - thus one of the above methods resolved it)