I find that time lapse "resets" itself from 10 minutes of recording to 10 seconds of recording. Is there anyone who can explain why?

Maybe you have the K3.BIN file on your SD card? It will install the firmware from that file when you start up - which resets the settings. The green video light on the control box flashes rapidly if it is updating.

Is it only the time lapse that is being reset? Or have more settings been reset?

And when will the timelape be reset? While driving or when the motorcycle is off, or....?