A word of warning: FT overrides are currently
broken on a number of devices (the K4, at the very least) in the last few batches of snapshots.
The issue might be more widespread than this, especially on legacy devices, but the FT override issue is especially critical, since it causes the framework to crash on startup, which is bad

.
I don't have time to debug this further right now, but I have a vague idea of what might be the problem...
In the meantime, I'd recommend sticking with the latest releases (which are relatively recent, and are confirmed to work), especially if you're NOT using a recent device (meaning anything >= PW2 should be okay).