CentOS 7.4 Plone 5.1 Apache 2.4.6 VHM dynamic rewrite & mapping doesn't work correctly using needed wildcards (40 sites, 190 domains)

Understood. That was going to be my last resort. If it is a bug (as it seems compared to previous versions functioning), then I was willing to help track down so that it could be fixed. I just had hoped it would be fixable. Unless you are saying this is an international change in how it works compared to previous versions, is not a bug, and is working as desired by the Plone developers for 5.x?