If you are tracking keywords in different locations, the Rank Tracker email will only display the flag of the country. So it implies that the rank displayed is your national rank, when in fact it could just be your ranking in a smaller city that you are also monitoring.
Example: first screenshot shows a #6/3 ranking for "insurance agency" in the location of "USA" (based on flag). Digging into the data shows this is just the ranking within the city of the business. Big difference and very misleading. Location should display the actual location.
Example 2: second screenshot shows the same keyword in the same location (USA) twice, but with different "lost features". Again, these are not actually based on the national "US" SERP, it is based on 2 smaller locations. But without the actual correct location in the email, there is no way to tell and it just becomes completely meaningless and misleading data.