Running core 2025.12.03 on HA Green. Since about a month ago, Whenever I try to update anything besides the core, the system fails to load the UI and I have to reboot into safe mode and restore from backup. Supervisor log only says “HA core crashed”. No other log entries point to where the problem is.
OS is starting fine, Add-ons too, but UI won’t load.
I’m currently at a loss and could use a hint about where to look next.
Take a look in your configuration.yaml
commend out # newly created/changed lines
if it does help, try to run
ha >supervisor repair
ha >core rebuild
In the HA-Cli/Prompt
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Then a custom integration is at fault. Try a binary search to identify which one. Disable half of them and see if the issue persists. If it does then it is in the undisabled half. So disable half of that. Or if it does not then enable half of the disabled half. By repeating this halving of the known bad selection you can quickly narrow it down to one custom integration.
ha supervisor repair
ha core rebuild
did the trick. Things are back to normal Thanks!
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Are you sure ? 
As Tom above mentions, you might just find now, that your logs are flooded,doo to a custom integration not working properly now.
So check your logs ( Always ) after such a repair, or in fact always after installing something
Thanks, but everything looks fine now.
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