Last "End" in "prices"-attributes erroneous

[F-HALD]

Describe the issue

Great integration - I love it.

I have a few experiences/bugs to share.

I experience that for "binary_sensor.stromligning_tomorrow_spotprice_vat"-attribute, the final "end" is wrong.
Here is an example:

• price: 0.989764
  start: "2026-02-24T21:00:00+01:00"
  end: "2026-02-24T22:00:00+01:00"
• price: 0.905462
  start: "2026-02-24T22:00:00+01:00"
  end: "2026-02-24T23:00:00+01:00"
• price: 0.798557
  start: "2026-02-24T23:00:00+01:00"
  end: "2026-02-24T00:00:00+01:00"

The same problem occurs for the "sensor.stromligning_forecasts_vat". The final "end" is wrong.
Here is an example:

• price: 1.476881
  start: "2026-03-02T21:00:00+01:00"
  end: "2026-03-02T22:00:00+01:00"
• price: 1.353816
  start: "2026-03-02T22:00:00+01:00"
  end: "2026-03-02T23:00:00+01:00"
• price: 1.228218
  start: "2026-03-02T23:00:00+01:00"
  end: "2026-02-24T00:00:00+01:00"

I also experience that at midnight where the "prices"-attribute of "binary_sensor.stromligning_tomorrow_spotprice_vat" is moved to the "prices"-attribute of "sensor.stromligning_current_price_vat" and in this case the "prices"-attribute of "binary_sensor.stromligning_tomorrow_spotprice_vat" is not completely cleared. The last "end" still remains and that has confused my usage of the integration.

Is anyone else experiencing the same?

What version of Home Assistant Core has the issue?

core-2026.2.2

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Anything in the logs that might be useful for us?

Logger: homeassistant.components.script.1702507285062
Source: helpers/script.py:2098
integration: Script (documentation, issues)
First occurred: February 22, 2026 at 12:02:04 AM (2 occurrences)
Last logged: 12:02:36 AM

Electricity cheapest period: Error rendering variables: UndefinedError: 'dict object' has no attribute 'start'

Additional information

No response

[F-HALD]

I made a work-around in my code which means that this is not urgent for me.

Consider it as feedback.

[F-HALD]

FYI:

I have received this log-information as well. Maybe it is related:

`Logger: homeassistant.util.logging
Source: util/logging.py:167
First occurred: February 21, 2026 at 11:00:02 PM (16 occurrences)
Last logged: February 23, 2026 at 11:00:01 PM

Exception in handle_update when dispatching 'stromligning_signal_update': () Traceback (most recent call last): File "/config/custom_components/stromligning/binary_sensor.py", line 293, in handle_update await self.handle_attributes() File "/config/custom_components/stromligning/binary_sensor.py", line 130, in handle_attributes "available_at": self.api.get_next_update().strftime("%H:%M:%S"), ~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/config/custom_components/stromligning/api.py", line 322, in get_next_update data_refresh = data_refresh.replace( hour=dt_utils.now().hour + 1, minute=0, second=2 ) ValueError: hour must be in 0..23
Exception in handle_update when dispatching 'stromligning_signal_update': () Traceback (most recent call last): File "/config/custom_components/stromligning/binary_sensor.py", line 293, in handle_update await self.handle_attributes() File "/config/custom_components/stromligning/binary_sensor.py", line 156, in handle_attributes "available_at": self.api.get_next_update().strftime("%H:%M:%S"), ~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/config/custom_components/stromligning/api.py", line 322, in get_next_update data_refresh = data_refresh.replace( hour=dt_utils.now().hour + 1, minute=0, second=2 ) ValueError: hour must be in 0..23
Exception in handle_update when dispatching 'stromligning_signal_update': () Traceback (most recent call last): File "/config/custom_components/stromligning/binary_sensor.py", line 293, in handle_update await self.handle_attributes() File "/config/custom_components/stromligning/binary_sensor.py", line 182, in handle_attributes "available_at": self.api.get_next_update().strftime("%H:%M:%S"), ~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/config/custom_components/stromligning/api.py", line 322, in get_next_update data_refresh = data_refresh.replace( hour=dt_utils.now().hour + 1, minute=0, second=2 ) ValueError: hour must be in 0..23
Exception in handle_update when dispatching 'stromligning_signal_update': () Traceback (most recent call last): File "/config/custom_components/stromligning/binary_sensor.py", line 293, in handle_update await self.handle_attributes() File "/config/custom_components/stromligning/binary_sensor.py", line 208, in handle_attributes "available_at": self.api.get_next_update().strftime("%H:%M:%S"), ~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/config/custom_components/stromligning/api.py", line 322, in get_next_update data_refresh = data_refresh.replace( hour=dt_utils.now().hour + 1, minute=0, second=2 ) ValueError: hour must be in 0..23`

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