RC2000 change to Celcius

[jmorris644]

This morning I was looking at my thermostats (I have 10 of them in my control room) and all of them have changed to Celsius. This is the 1st time this has happened. I am assuming that the OPII did this as all 10 are changed but I have not updated the OPII for quite some time so it was nothing that I would have changed.
 
Any thoughts?
 
Joe