history-graph: wrong graph, wrong current value (again)

[ildar170975]

Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.

Describe the issue you are experiencing

Absolutely same as described here:
home-assistant/core#73154

history-graph stopped displaying valid data.
On some moment of time graph becomes a constant line.
Only after restart of HA graphs again work.

type: vertical-stack
cards:
  - type: entities
    entities:
      - binary_sensor.net_is_available_internet
  - type: history-graph
    entities:
      - binary_sensor.net_is_available_internet
    hours_to_show: 4
    refresh_interval: 0

type: vertical-stack
cards:
  - type: entities
    entities:
      - sensor.mijia_300_1_co2
  - type: history-graph
    entities:
      - sensor.mijia_300_1_co2
    hours_to_show: 4
    refresh_interval: 0

I noticed that sometimes it happened right after connection to Internet is lost.
Today connection lost at about 11:15.
Then the connection was fixed at about 13:30.
Now it is 14:55.
Graphs stopped working about at the same time as connection was lost.

I wonder why connection to Internet is so important since all monitored sensors are for local devices only.

Here is an example for HA uptime from sysmonitor integration, it shows the same bug:

Describe the behavior you expected

Graphs should be updated.

Steps to reproduce the issue

1. Start monitoring if graphs are updated.

What version of Home Assistant Core has the issue?

2022.7.3

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue with?

Chrome 103.0.5060.114

Which operating system are you using to run this browser?

Win10x64

State of relevant entities

No response

Problem-relevant frontend configuration

No response

Javascript errors shown in your browser console/inspector

No response

Additional information

No response

[github-actions]

There hasn't been any activity on this issue recently. Due to the high number of incoming GitHub notifications, we have to clean some of the old issues, as many of them have already been resolved with the latest updates.
Please make sure to update to the latest Home Assistant version and check if that solves the issue. Let us know if that works for you by adding a comment 👍
This issue has now been marked as stale and will be closed if no further activity occurs. Thank you for your contributions.

[ildar170975]

still happens

[github-actions]

There hasn't been any activity on this issue recently. Due to the high number of incoming GitHub notifications, we have to clean some of the old issues, as many of them have already been resolved with the latest updates.
Please make sure to update to the latest Home Assistant version and check if that solves the issue. Let us know if that works for you by adding a comment 👍
This issue has now been marked as stale and will be closed if no further activity occurs. Thank you for your contributions.

[ildar170975]

Still happens.

[benlancaster]

I'm experiencing the same behaviour, but only on graphs with multiple entities

For example, this entity works fine on its own:

But switches to a flat line if I add a second:

It seems to affect every graph I have that has multiple entities, single entities work fine

[github-actions]

There hasn't been any activity on this issue recently. Due to the high number of incoming GitHub notifications, we have to clean some of the old issues, as many of them have already been resolved with the latest updates.
Please make sure to update to the latest Home Assistant version and check if that solves the issue. Let us know if that works for you by adding a comment 👍
This issue has now been marked as stale and will be closed if no further activity occurs. Thank you for your contributions.

[ildar170975]

Have not observed this problem for a long time.
Closing now.