Today three of my thermometers decided to show up in Lovelace as Celsius instead of Fahrenheit. They were all showing F last night, but today I saw this:
The three which changed are entities from Visonic MCT-340 E window/door sensors.
Not knowing where else to look, I tried changing one of the offending entities in Configuration / Customizations and then changing it back, even though it said it was already set programmatically to F.
Next time I looked, they were all back in one graph. I never touched the other two.
I’m just wondering what happened, and what I should do if it happens again.