Lovelace dashboard to Cast local video file not working

[nickv1091]

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

I am able to create a picture entity, markdown card, custom card and webpage card to show my local media file. On my dashboard, I am able to see it play. When I cast the video, it doesn't show on my chromecast tv. I do see the box where it should be playing. I am able to cast all other items and dashboards.

I am using this for an automation that is already casting a dashboard, so using the media_player causes a delay when it cycles back to my original cast.

Describe the behavior you expected

The dashboard to play the video I have in my www folder and also my local media folder (tried both).

Steps to reproduce the issue

1. Action the response
2. automated the response

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What version of Home Assistant Core has the issue?

2025.1.4

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

Currently, I cast my stats dashboard from team-tracker with no issues. When my team scores, I need my local media file to play then, go back to my casted stats dashboard. Funcitonally, I have this working, but I cannot figure out how to get my local video to actually play. Very new to ths so any help is great!