With new KitKat Glass version my Glass app I developed under API 15 stopped working. I updated the syntax of all calls and I can install the .apk on my Glass hardware, but I can't trigger the voice command to launch my Glass immersion.
How do you debug the command not showing up in the menu?
In XE16 the way voice commands works was changed.
See this questions to see how to upgrade XE12->XE16 voice launch feature.
Why is my voice command missing from the ok glass menu in XE16?