Recent change in history-graph?

Tried to check the change logs but can’t find anything, but I think there must have been a recent change in how the history-graph display is set up during a time when sensors were unavailable.

Situation:
I have a history-graph card that displays the values for 3 sensors of my Weber iGrill2 thermometer:

  1. Ambient Temp
  2. Probe 1
  3. Probe 2

Obviously, when the thermometer is not in use, not powered up, and not connected, the sensors are ‘unavailable’.

Previously, when I turned the thermometer on at 19:59h and the sensors became available, the card showed this by e.g. 21:00h:

This was the card config

type: history-graph
entities:
  - entity: sensor.igrill2_probe_1
  - entity: sensor.igrill2_probe_2
  - entity: sensor.igrill2_ambient_temp

For a few weeks now, the card shows this:

It shows a whole lot of ‘empty space’ for a period where the sensors were not available, which was previously hidden.
Actually, in reality it’s even worse because, if I skip the hours_to_show:-value like in the config shown above, it shows a whole lot of empty space for the last 24h; for this example, I set it to 3h.

Any hints on how to get back the display where it only shows the x-axis when at least one of the sensors in not unavailable?

Plus one to this - it used to auto scale to the available data. handy for tracking devices that are only on for a period of a few hours then not used for days.

I couldn’t find a change mentioned either.