Trouble exporting families

I’m having a hard time getting Glyphs to export this icon font correctly. I’m using a Regular weight for the solid icons and a Light weight for the stroked. I had this setup exporting correctly in the past but I’m pretty sure I’ve set up my masters or instances wrong in this file, because the solid family keeps picking up the Light master.

Anyone able to shed light on this? Been wracking my brain trying to figure it out and just cant today heh.

https://www.dropbox.com/s/hjsma0gixwe98av/UI%20Font%20Free.glyphs

in the Solid instance, you have to put 400 in Interpolation > Weight.

Nice, I knew it was something obvious I was overlooking.

You saved the day! Thanks a bunch.

Great app and great support =]