Well I would need to see a log to determine if and where there is a problem but my 'guess' is the regional settings are defines by controller voice set accent rather than the area itself, if so I will add that to my list of things to rectify.
As for US voices saying 'point' rather than 'decimal' again that is because the variations are determined by accent and not area. We can't get everything right and besides if I attempted to model PFE on real world ATC you would hear some controllers and pilots chatting in a languages other than English.... which, according to my pilot chums, happens quite frequently in Europe.
Thanks for raising your queries, they are now on my list