no smooth curve with 4.02

[guensen0]

Data Files: Please add all 3 text files of the entity(s).

Added

2. Your YAML Code

type: custom:statistics-graph-chart-card
show_legend: true
show_interval_picker: true
hours_to_show: 1
points_per_hour: 60
tooltip_match_axis: false
tooltip_order: default
height: 200
lower_bound_secondary: '0'
lower_bound: '0'
upper_bound: ~4000
x_grid_style: dashed
y_grid_style: dashed
entities:
  - entity: sensor.ladeschalter_on
    statistic_id: null
    name: null
    color: rgba(0,200,0,.5)
    graph_type: step
    show_extrema: never
    line_width: 1.5
    show_state: false
    smooth: false
    aggregate_func: last
    decimals: 0
    points_per_hour: 60
    show_line: false
    y_axis: secondary
  - entity: sensor.ladeschalter_off
    statistic_id: null
    name: null
    color: rgba(200,0,0,.5)
    graph_type: step
    show_extrema: never
    line_width: 1.5
    show_state: false
    aggregate_func: last
    decimals: 0
    points_per_hour: 60
    show_line: false
    y_axis: secondary
  - entity: sensor.sunny_home_manager_2_metering_power_supplied
    statistic_id: null
    name: null
    color: '#d6d6d6'
    show_range_band: true
    line_width: 1
  - entity: sensor.keller_shm2_em_power_supplied_mean
    statistic_id: null
    name: null
    color: '#378ADD'
    line_width: 2
    show_fill: false
    z_index: 10
  - entity: sensor.keller_shm2_em_power_supplied_mean_15min
    statistic_id: null
    name: null
    color: '#ea9739'
    line_width: 2
    show_fill: false
    z_index: 11
  - entity: sensor.keller_shm2_em_leistung_wenn_ladeschalter_an
    statistic_id: null
    name: null
    color: '#fffa61'
    show_state: false
    show_extrema: never
    points_per_hour: 60
    aggregate_func: last
    graph_type: step
annotations: []

3. Bug Description

smooth curves are gone after update (without any changes in the card):
4.01:

4.02:

[melzapr]

Confirm! The same for me, I downgrade to 4.01