Summary: MA as a HA (OS) app crashes without logging any errors or warnings even in safe mode or restoring from a backup
Yesterday, it worked fine. I did not change anything, and suddenly the MA app in HA (HAOS) was not running anymore. I restarted it, and it began logging and starting, but then suddenly it died. No error, warning or log message related to the crash appeared, the HA watchdog restarted MA. I tried safe mode, same issue. I even restored a backup from when it was working and started it with safe mode. Still crashing.
The webserver is briefly kind of accessible every time; it says authenticating, but then connection is lost.