It looks like the issue is the numbers you have for lat/long. Tableau is reading them without the decimal point (so, e.g., 41.4646 is being read as 414,646). You might want to look into addressing this in your CSV file. Otherwise, I came up with a somewhat convoluted workaround using calculated fields:
This method isn't great, though, because you have to manually say where the decimal point needs to be. (So if you needed 414646 to be 4.14646 for one row and 41.4646 for another, it wouldn't work.) I've attached a workbook, but it's v10.2.
I hope this is helpful.
Map.twbx 321.7 KB
Thank you very much. That was helpful!