Virtual Temperature Object large -ve readings

[Graham]

I've got 2 "virtual" DTS modules (1 for each floor of the house), that have each room's temp sensor connected to the "alternative temp source", giving me an average temperature per floor.
I also have the same setup for average outside temperature with 3 x LTH-X.

The problem I'm seeing is on cortex network start/stop and spur re-powering, the 2 virtual DTS that show average floor temp will drop to -1000, when graphed it cortex it shows it dropping to around -99.
The same thing DOESN'T happen on the virtual DTS that represents the outside temperature.

I've double checked the DTS connections and can't see anything wrong.

[Viv]

A value of -1000 is used as a un-initialised value within Cortex. That is, decisions based upon this temperature should not made until a real reading has been received.
It may be the 'alternative temp source' input is not considering this and we will need to check.

Viv