I have now started encountering problems on my import, the data file is so large it starts to give serious headaches and runtime errors in the middle of a small edit session. How should I progress from here? Split the data in some way? I could obviously make smaller data files based upon the missing municipalities with their neighbouring municipalities. That way I could seriously reduce the size of the data file, but it will seriously slow down the import process (though not as much as these crashes I experience).

I will look into that this afternoon so that I can get the snowball rolling again.

BTW I have started to add place=suburb on relations for admin_level=10