Have you tried it by removing the "?" from the product names?  I would also do a "=CLEAN" on column B after removing the "?" and try again.

Only thing I can think of is SS does not like special characters in product names. The "#" in some rows might be causing your problems given that your issues start at row 5, which has the pound sign. 

Make sure the csv file is closed before importing it?

Open your csv file in a true plain-text editor such as Notepad++ or UltraEdit. Do not trust Excel or Google Sheets, and do not open it in WordPad or MS Word. Once open in the plain text editor make sure there are no invisible characters or incorrect formatting. As a test maybe delete all of the records except a small subset (10 or 20 records) and work only this this file, making small changes until you narrow it down.

Excel and Google Sheets are NOT your friend when it comes to csv and other types of delimited text files. I suspect the issue is inherent in your files, but when open in Excel or Google Sheets you can't see it. These apps try to be helpful and will do things like hide invisible characters (like line breaks or non-ASCII characters), or (incorrectly) make assumptions and reformat number fields, or round values, or remove leading zeros. 

I noticed the very first row in your data file had values. Then the second line has your field headers, and then all of the fields appear below that. Delete the first row. (Looks like it contains formulas). Even if your print range starts at row 2, that doesn't mean your csv file will necessarily also start at row 2. As I mentioned earlier, make sure you install a plain-text editor such as Notepad++ (It's a free program) and open your csv file in there, and use that to track down the issue.