Mac Password dialog box font missing / corrupt Since changing my Mac's font from the default on Yosemite to San Francisco (the font on the Apple Watch for those who don't know) my Mac's password dialog box has always appeared like this. It still works once I type my password in, but it's slightly annoying.

Would anyone have any suggestion on how to fix this? Cheers!

Mac OS 10.10.3.
I have the same issue. Did some Google searching and tried to clean the cache in the font database through terminal: "sudo atsutil databases -remove; atsutil server -shutdown"

This did not work, so the other option would be to remove San Francisco for now from your user folder. Haven't tried that yet.