This version was actually bug tested with a preexisting Age, the end result (after many hours of literally massaging
Blender, the plugin, and the Age) being a 100% working Age.
However, there are still quirks between this and the old Alcugs PyPRP, as you are experiencing Andy. But ladders work!
And it is possible, eventually, to convert your Ages to a 100% working Age with the new plugin. We hope to get a tutorial on this done soon.