HELP: Just updated from 2024.11 to 2024.12.5 and front end no longer loads

I have 2 devices (tablet and PC) that now just sit showing this screen after the update

I have one phone that I can still see the UI - any suggestions on what to look for - it’s giving me the message - a new version of the frontend is available - what can I do to roll back the front end?

I am running a RPi 4 - I cannot access Backups - blank screen, same for Add-Ons

I’ve read this thread, but cannot SSH as I cannot get to any addons so I can’t check any logs

Clear your browser cache and reload the page. For the app on the tablet/phone, try force quitting the app and restarting it.

Did that - used a totally different browser, used incognito mode - still same

Seems that from this thread

It is HACS breaking the system. I cannot view HACS in my phone, nor addons.

Are there any ways to firstly prevent my phone from reloading the UI to the latest.

I can’t even restart or reload anything in the UI as it comes up with the error

Failed to perform the action homeasistant/restart.module ‘homeassistant.util.yaml.loader’ has no attribute ‘SafeLineLoader’

Was able to power down and the when starting, got my laptop to load the UI before it was fully loaded and I have access to UI elements - managed to kick off a restore, although I am not sure that worked - not sure how to tell

In the meantime I can use SSH and see these in the logs (sorry, don’t know how to copy from Terminal window

I was able to disable Dwains dashboard and now the system loads - although the restore does not appear to have reverted, System shows 2024.12.5

Dwain’s dashboard version was 3.6.0 - I’ve updated it to 3.7.1 but have not enabled it yet - until I can find out if it’s safe…

Fixed the same problem here:

AttributeError: module ‘homeassistant.util.yaml.loader’ has no attribute ‘SafeLineLoader’

i remoted ssh to the machine, and remove dwains dashboard:
_data/custom_components# rm -r dwains_dashboard/