max auto or |+x| not working correctly with stacked columns

[chrismaddahl]

Checklist

• I updated the card to the latest version available
• I cleared the cache of my browser
• I verified that I'm really running the lastest version in my browser console
• I checked if there is another issue opened with the same problem

Describe the bug
I have multiple sensors displayed as stacked columns.
For example the sum of one columns is 30kWh and the bottom column is 15kWh.
the max value of the y-axis is then only at around 15kWh and the rest above is cut off.

Version of the card
Version: 2.1.2

To Reproduce
This is the configuration I used:

type: custom:apexcharts-card
apex_config:
  chart:
    height: 300px
graph_span: 2d
span:
  end: day
stacked: true
header:
  show: true
  title: Hausverbrauch letzte 24h
  show_states: true
  colorize_states: true
now:
  show: true
  color: green
yaxis:
  - id: one
    min: 0
    max: 30
    decimals: 1
    apex_config:
      tickAmount: 10
series:
  - entity: sensor.hostname_wechselrichter_home_consumption_from_grid_day
    yaxis_id: one
    name: Netzbezug
    stack_group: a
    color: 3A506B
    type: column
    stroke_width: 1
    extend_to: now
    group_by:
      func: diff
      duration: 1h
  - entity: sensor.hostname_wechselrichter_home_consumption_from_pv_day
    yaxis_id: one
    name: Eigenverbrauch PV direkt
    stack_group: a
    color: FFC300
    type: column
    stroke_width: 1
    extend_to: now
    group_by:
      func: diff
      duration: 1h
  - entity: sensor.hostname_wechselrichter_home_consumption_from_battery_day
    yaxis_id: one
    name: Eigenverbrauch Batterie
    stack_group: a
    color: 39D353
    type: column
    stroke_width: 1
    extend_to: now
    group_by:
      func: diff
      duration: 1h
  - entity: sensor.hostname_wechselrichter_energy_to_grid_day
    yaxis_id: one
    name: Einspeisung
    stack_group: a
    color: D72638
    type: column
    stroke_width: 1
    extend_to: now
    group_by:
      func: diff
      duration: 1h
  - entity: sensor.hostname_wechselrichter_battery_charge_from_pv_day
    name: Batterieladung
    stack_group: a
    color: 56CCF2
    type: column
    stroke_width: 1
    extend_to: now
    group_by:
      func: diff
      duration: 1h
  - entity: sensor.enector_geladene_energie
    name: Wallbox
    stack_group: a
    color: 5555FF
    type: column
    stroke_width: 1
    extend_to: now
    group_by:
      func: diff
      duration: 1h

Screenshots
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Expected behavior
I expected the max value of the y-axis to be calculated from the sum of all columns

Desktop (please complete the following information):

• Browser [Firefox]
• Version [133.0]

Additional context
Add any other context about the problem here.

[odelma]

I was looking for solutions for the same problem, with stacked columns if I do not set max value for the y-axis the axis is cut off at the biggest value of the series, not showing the stacked (combined) value.

I also noticed that a chart with column and line series renders in an unexpected way. Max value here is 15 but without max value set for y-axis, the chart shows until 40 which leaves a lot of empty space:

Then if I set max: auto (or max: ~0) I get:

...i.e. seemingly it is taking max from the first series and thus cutting the line series for values above 6. These might be two sides of the same issue with (min/)max?