Hi Stefan, I've been investigating this import point file problem today and it seems to be a bug pretty deep in the scripting system involving conversion of string values to number values. It's also not unique to the Mac version, it happens on the Windows version too.

I'm working on a fix to the script engine itself for the next v3 release, but in the meantime here is an updated ImportPointFile plug-in which has a slight modification which will avoid triggering this particular bug, this version should work for you with your original locale settings, please let me know if it still does not.

Thanks,
- Michael