I’m not the first one who encountered things like this,
like here it is already mentioned:
http://glyphsapp.com/forums/index.php?action=vthread&forum=1&topic=438
I had set parameters for individual masters. But when adding more masters, the parameters & other preferences should remain consistent.
This can more easily be done by setting preferences in the First tab of the font info??
I suggest the window mentions where the parameters are set for.
http://postimage.org/image/7d39jk4v5/
(and this in every individual tab)
As I understand it correctly;
parameters in the font tab are for the whole font (masters and instances),
parameters in the masters tab are for the masters and instances,
and parameters in the instances tab are only for the instances
??