@David_B I’m guessing it has something to do with the newline character sequence used. This is known to happen with files created in Windows, which uses a carriage return/newline sequence (\r\n), but it’s not necessarily specific to Windows.
Make sure your line protocol file just uses newline characters (\n) without carraige returns. When copying and pasting, I’m betting the carriage return gets stripped out, which is why it’s working.
