The reason that the Auto Mark Rules does work could be:
- Having the same Personal Location Name in multiple places
- Having the same GPS co-ordinate location with multiple Personal Location Names
- When an automark rule is set up you would select the "apply in reverse" button so that the rule applies in both directions.
- If you set up a rule that from home to office is an private trip and download your data it will automatically mark this as such.
- If you then set up a rule that from office to home and in reverse is always a private trip you will have duplicated the rule.