New overview dashboard - bad render when set as default

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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

New overview dashboard doesn't render properly only when set as default (profile). It renders perfectly when a custom dashboard is set as default and I then switch to new overview. Running in safe mode exhibits expected behaviour, ie custom compos not loaded - the problem appears to be conflict with custom components (but only if new overview is loaded as default!). Relevant custom components: 1. Hue icons 2. Frosted glass theme

Describe the behavior you expected

New overview should render the same whether set as default dashboard or not

Steps to reproduce the issue

1. Set new overview as default
2. Restart HA - new overview renders improperly
3. Set another dashboard as default
4. Restart HA - another dashboard renders properly
5. Select new overview - renders properly
   ...

What version of Home Assistant Core has the issue?

2026.2.1

What was the last working version of Home Assistant Core?

N/a - problem with new overview

In which browser are you experiencing the issue?

Edge (windows and mobile), Duck duck go

Which operating system are you using to run this browser?

Android, Windows

State of relevant entities

Problem-relevant frontend configuration

JavaScript errors shown in your browser console/inspector

Additional information

No response