Usage tracking for Zoo licencing doesnt appear to be working

We have 4 x Rhino 5 licences, which we host via Zoo 6.0.15149.9391 on a Windows 2012 R2 server.
I was grateful to see there is a ‘usage tracking’ option.

I’ve enabled this under options and selected daily.
Stopped and started the licence.
Waited a few days
Then hit Usage Tracking from the menu, which brings me here C:\ProgramData\McNeel\Zoo\6.0\Usage, which is still empty.

Am i missing something?

No, you’re right.
The current Zoo has a bug that isn’t saving optional settings.
We’re working on it and should have a new Zoo posted before long.

Sorry for the inconvenience.