For those unfamiliar with the term, it is something you can do if you are having a bad match and do not want your stats to brought down by this, you go to the dashboard to basically make it so that all stats from that match is wiped.

I was just wondering because of the many host migration that do not work and wondered if it is caused by the host dashboarding.

if the host dashboards the game just ends abruptly, the failed host migration is just because the system svcks.