History panel: expanding a single device into separate entities drops some of those entities

[hmmbob]

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.
• I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.

Describe the issue you are experiencing

History panel: expanding a single device into seperate entities seems to drop some of those entities. With the current smart plug selected, 4 entities show. If you expand into separate entities, the amount of shown entities drops to 2.

20250204-1021-03.9784782.mp4

My EV charger drops from 27 displayed entities to 22
The mobile phone of my kid from 22 to 7 😱
Illustration with my own mobile device selected

20250204-1025-36.4101741.mp4

I reported this in beta channel at Discord, was advised issue also exists in 2025.1

Describe the behavior you expected

Expanding the device would give all related entities in the graph.

Steps to reproduce the issue

1. Go to history panel
2. select a device that holds multiple entities (any device using the HA mobile app is probably a good one)
3. Expand the device into separate entities
4. Observe that entities are missing
   ...

What version of Home Assistant Core has the issue?

core-2025.2.0b7

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue?

No response

Which operating system are you using to run this browser?

No response

State of relevant entities

Problem-relevant frontend configuration

Javascript errors shown in your browser console/inspector

Additional information

No response

[silamon]

If you go to the device page, do you see those missing sensors listed under "Diagnostic"?

[hmmbob]

If you go to the device page, do you see those missing sensors listed under "Diagnostic"?

For the mobile device: Yes.
For the smart plug: not all of them - also some "configuration" entities are missing.

Intial device selection:

Expanded entities:

Device page:

[MindFreeze]

Removed the milestone because it isn't a new issue and I won't have time to fix it for a patch release. Don't even know if it is a frontend issue. If someone else wants to fix this for a patch, we can add the milestone again