#Title:Home Assistant frontend files missing (404 errors) after August update - works intermittently

1 messages · Page 1 of 1 (latest)

elder knoll
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Goal:
I need to restore stable access to my Home Assistant frontend. After the August update, HA works for 1-2 days then becomes inaccessible with 404 errors for all frontend files.
System Information:

Hardware: Dell R720 running Proxmox
HA Setup: Virtual Machine (4 CPU cores, 16GB RAM)
Access Methods: Both IP (192.168.0.101:8123) and homeassistant.local:8123 fail
Network: nginx URL redirect also stopped working

Problem Details:
The frontend becomes completely inaccessible with multiple 404 errors for core files:
GET http://homeassistant.local:8123/frontend_latest/core.bd9c1ce6d715c8c0.js net::ERR_ABORTED 404 (Not Found)
GET http://homeassistant.local:8123/frontend_latest/app.f02cd80838f98ca8.js net::ERR_ABORTED 404 (Not Found)
GET http://homeassistant.local:8123/static/translations/en-9f8bf7fa59c9365c18926c3480483dfb.json net::ERR_ABORTED 404 (Not Found)

What I've Observed:

Issue started after August 2025 HA update
Works fine for 1-2 days after restart, then breaks
Both custom components (card-mod, dwains-dashboard) and core files affected
Backend seems to be running (VM is up and responsive)
Same 404 pattern occurs with both IP and .local access

What I've Tried:
[Please add any troubleshooting steps you've already attempted, such as:]

VM restarts

Clearing browser cache
Checking Proxmox logs

dapper hollow
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have you reviewed the HA logs?

elder knoll
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Going to restart my vm and then look at the logs .. right now it is totally not accessible do I can access the maching from proxmox .. what would you recommend ?

dapper hollow
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I suggest restarting the VM and reviewing teh HA logs

elder knoll
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getting some logs from VM in current state - gioing to share in few minutes

dapper hollow
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the logs from the previous run will be in home-assistant.log.1

elder knoll
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I have not restarted the VM yet .. this is how it is right now where I cannot access the front end

dapper hollow
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are you running HAOS?

elder knoll
elder knoll
dapper hollow
elder knoll
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what do I do to fix it

dapper hollow
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review more of the logs, start disabling integrations to find the culprit

elder knoll
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ouch should I revert back to previous version ?

dapper hollow
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I really can't help that much - this is specific to your system, and I could only find a single instance in a web seearch

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reveiw your logs, disable custom integrations

elder knoll
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restarting my system

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any points which logs should I look at - core / supervisor or host

dapper hollow
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Core