Recent Versions of Domain Mapping break authentication

Version 4.4.0.6 t0 4.4.0.9 of Domain Mapping prevent authentication on all sites except the main site.
WordPress 4.2.4 with SSL on both front and back end
Multi-domain 1.3.4.5
iThemes Security 4.9.0

Older version (tested on 4.4.0.3 - 4.4.0.5) do NOT break authentication....