Rate and Heatflux doesn't work

Hi,

I've tried to use both the Rate and HeatFlux processors but neither seem to work.  I'm not running my own server, I'm doing this on emoncms.org.  My databases are Timestore.  I'm wondering if the problem with them both is related.

I've searched the dashboard showcase and I can't find anyone using these processes.  I'm thinking it's probably a little used feature that has stopped working due to some sort of upgrade (perhaps Timestore) and nobody has noticed.

Is anyone out there successfully using either of these functions?

Cheers!