I discovered a small issue when using Home-Assistant to Poll the Map too often (every 10 seconds to get a sort of Live map). The /tmp directory filled and the vacuum locked up. A re-boot fixes the issue obviously.

I had done other things on the vacuum in the past so I might have had less space available than normal.

A quick work-around was to throw this into cron
*/1 * * * * cd /tmp/maps && ls -t /tmp/maps | tail -n +2 | xargs rm --