This is about yafti's new config location. It's only used in custom images and in bluefin. Both are alpha.
Bluefin installations will currently see yafti every time they install the OS and every time yafti.ymlyafti.yml changes (that's how it's designed), i.e. when Bluefin changes default config.
I can certainly put in code that also looks at the old location but yikes that's messy for something that fixes itself after 1 Yafti appearance.