History graphs dont show up in view

I have a problem I cant get my head around. I tried searching here on the forum but no luck.

Im trying to get a 10 day view over my pool temperature. I have created a history_graph for the temprature sensor which is a heat device_class sensor. unit_of_measurement is C.

Ill add the sensor to the hstory graph, I then add the history graph to a view in the gui. It shows up as a card with a “group switch button” and one line with the history graph object. If I click on it it pop-up and show the graph but not in the group directly as it looks in the documentation.

Config here below. Please what am I doing wrong?
Im running 0.84.3

My view config :

grap_view:
  name: Grafer
  view: yes
  icon: mdi:chart-line-variant
  entities:
    - history_graph.pool_temperatur

History config

history_graph:
  poolgraph:
    name: Pool temperatur
    entities:
      - sensor.ute_temsen_pool_297
    hours_to_show: 240