Media player card - background image changes to blank when buffering

[u8915055]

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Describe the bug
I am working on a auto-expanding media card. one thing i noticed which i think is a bug is that when i go to play music on the media player, media players usually follow a state sequence of idle-buffering-playing and sometimes there are two buffering steps. I noticed, using chrome tools, that the background image for the music source appears when state is idle or playing, but disappears when state is 'buffering'. I did look at the dev tools in home assistant and the media_player attribute for background image does NOT change when in buffering state.

For my self collapsing card (and the default media card), this causes a blinking of the background image in the button during these buffering states.

To Reproduce
Play any media using a bubble card media player card and watch the CSS for background image

Expected behavior
There is probably a conditional statement in the code for displaying the actual background image that needs to have added the state of buffering.

Screenshots
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YAML
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Your code here

Informations (please complete the following information):
home assistant 2025.4.3

Additional context
Add any other context about the problem here.

Thank you! 🍻

[u8915055]

I just want to add that i may have solved my problem (still testing) by just overriding the background-image attribute with the following style code:

        .bubble-background {
            background-image: url(${hass.states[entity].attributes.entity_picture_local}) !important;
        }

Using this code, it just grabs the attribute for the image URL and just overrides the auto-determined one which i assume is determined in the module. With this style code above, the background image continues to show even when the state changes to buffering.. however it would be great to solve this without needing this style code