The mystery of the missing graph

Hi All,

 
I have a strange problem, I have made a devmon script (works) and a
hobbitgraph entry along with altering hobbitserver and on one of the
devmon devices it works, and on the other - which is the exact same
device and the devmon template works fine, it doesn't show.  To
summarise 2 devices one script one hobbitgraph and hobbit server entry,
one works one doesn't.

 
Any ideas?

 
Thanks,

Jason.