Hello John Curtis !

This problem should go away with 12 release - it was connected with the incompatibility of the UNA beta versions with the module config info. For example, if in config.php the vendor set 

'compatible_with' => array(

        '12.0.x'

    ),

then it will not work with UNA 12 b1, b2, rc etc. The most "universal" solution in this case:

'compatible_with' => array(

'12.0.0-B1'

    ),

then it will work with all betas, rc and stable release.