Dashboard cards failing to load on companion app

[ajstewart]

iOS device model, version and app version

Model Name: 16 Pro
Software Version: 18.2
App version: 2024.1058

Home Assistant Core Version

2024.12.5

Describe the bug

The media control card is not able to be loaded in the companion app.

I've added a screenshot showing that the card template doesn't load if going to add a new card, and also what shows if I click on edit on an existing media control card, it displays an error saying Configuration error Importing a module script failed.

Using home assistant on either my Mac or iPhone safari browser the component displays as expected.

To Reproduce

Try to add a media control card or use an existing one.

Expected behavior

Screenshots

Additional context

[wallinnr12]

I am having the same issue with a custom card. Have not found a way to solve it unfortunately. Also on iOS but same issue in regular browser.

[ajstewart]

I am having the same issue with a custom card. Have not found a way to solve it unfortunately. Also on iOS but same issue in regular browser.

Ah yes I've spotted another card that is not working correctly with the same issue. Though I cannot replicate the problem outside of the app, all working fine on normal browsers.

I'll update the title to reflect it's not just the media card.

[bgoncal]

Try Companion App Settings >> Debugging >> reset frontend cache

I have the media control card working fine on the iPhones and iPads that I have

[ajstewart]

Ah thanks! This has fixed the cards for me, I will close the issue.