Are you updating to 0.85 from 0.84 or an older version?
In 0.84 there was a breaking change to how an automation’s state is restored after a restart. Perhaps it is the same thing that is responsible for what you are experiencing.
I updated from the 0.85 beta version. But during the beta everything worked fine, just after the update to the stable release, the automations stopped working.
I just re-enabled them and now everything works fine again, even after a restart.