Needless region lock on Ring Alarm accessories

I've put Ring Gen 2 Alarm throughout my home, spent a LOT. Base unit, extender, three keypads, three sirens, six window sensors, eight motion sensors, two outdoor gate sensors. Ring keypads were on two month back order, so when my work colleague went to the US "I" bought a Ring Gen 2 Keypad to complete my install, and some leak sensors. So, it's the same keyboard that I've three of already, but when I try to add it, it tells me its region locked. Same for the leak sensors. I can't quite get my head around the fact that Ring say that "anything that's compatible with Ring can be added" and you can't get much more "compatible with Ring" than RIng's own products. I work in volume consumer electronic manufacture, so I'm not buying that this is a homologation matter. These items should just work.