Importer Select not Pertaining

Hello,

I’m not sure where to request support for the Importer so asking here if this is the wrong place please point me in the right direction.

I’m finding for a single item in the mapping table that it’s select is resetting to blank each time I save the configuration and reload. See screen, I’ve set this to Country multiple times now.
http://i.imgur.com/9q75Xl1.png

Thoughts?
Thanks

https://ww.wp.xz.cn/plugins/wp-property/