Strange history graph behaviour

I’m seeing some strange behaviour when configuring a history graph. I want to plot a few of temperatures on the same graph, specifically:

  • Flow temperature
  • Return temperature
  • Ambient temperature
  • Compressor discharge temperature
  • Target flow temperature

I have (working) sensors for each, and the graph was working just fine until either the last 2023.2 release or 2023.3 release (I’m not sure which)

Adding one value works just fine, the graph looks as expected.

As soon as I add a second, I get a flat line for both sensors:

In summary, all of the sensors plotted individually are working as expected, but adding multiple sensors yields the strange looking graph as you can see above.

What am I doing wrong? Any tips?

I have the same problem

Suggest you to create a GitHub issue.
Post a link here then.

It’s been fixed in 2023.3.2

I have the same problem.


The sensors are the same, the board is the same but if I change the time parameter, the value that is displayed is different. The values in the db are correct

I’m in
Home Assistant 2023.3.3
Supervisor 2023.03.1
Operating System 8.4
Frontend 20230309.0 - latest

Welcome to the club)))

Example: