So an update here - it looks like the CSV file was formatted with only carriage returns ("\r"), where you really want carriage return and line feed ("\r\n"). You can see these characters if you use a text editor that has a "show all characters" or similar mode.
We ran a quick replacement and everything loaded just fine (see attached csv).
We'd imagine that most people edit CSVs using MS Excel, so we took a look through all the various CSV save options to see if any of them created this problem. Saving as "CSV (Macintosh)(*.csv)" is the only format available in MS Excel which looks to reliably cause this problem, all the other formats available structure the line breaking correctly.
So the fix is pretty easy if someone is using MS Excel, just save the csv in any format except Macintosh.. We don't know if there are issues if one is editing on a mac platform (we're mostly PCs here).
What editor/computer platform did you create your file with?
