Kate and Konsole settings lost

Hi there. After starting my laptop I notices that my two Kate instances had forgot the session they had open. Also, Konsole forgot its open tabs and the settings/schema/paper background. These were easy enough to restore but in case it's a symptom of a more serious problem I thought I'd run it by the list. Also, shutdown didn't complete so I had to hard-reset the laptop with the press-the-power-button-down-for-5-seconds trick, not nice! Regards, Philip Ashmore