Missing glyphs in exported Hawaiian font

Hello, I’m trying to modify an existing font to include the Hawaiian diacritical markings, and although I’m able to do that just fine in the Glyphs app, when the font is exported, those new glyphs that I added are missing. The process I take is to change the dieresis in a font to a macron (or Kahako in Hawaiian) (i.e. change Adieresis to Akahako). I also change the ydieresis to a glottal stop (or okina in Hawaiian).

I can create the otf file and import it into Font Book just fine, but those glyphs I created are missing. And the new font doesn’t show up at all in my other programs like Microsoft Word. Please help. Is there a step I’m missing in modifying the font?

I’m running OS X Yosemite, Glyphs 2.

This is probably a font cache problem. Read this please:

For testing it is much better to use the Adobe Fonts folder:

This is not a good idea, because it breaks interoperability and forces your users to input one thing to receive another. If you want a macron, try using a combining macron (uni0304, macroncomb) instead of hacking another character. Word 2013 supports mark-to-base and mark-to-mark positioning. The glottal stop has a separate character, too (uni0241 and uni0242, or Glottalstop and glottalstopsmall).