Power outage with RB1200

Yesterday we had a power outage.
After the power was back again the RB1200 was not powering on with the latest configuration.
The blue light was on, but all the lights from the ports where not working and no connection was possible.

Then I powered off and on again, the same story.

Then I powered off and on again and the RB1200 was running with the latest configuration file.

Is this always the case in such a situation that the board is not starting up automatically with the latest configuration?
How do avoid this again?

Thank you