Hi Bashy,
the date on a new line seems strange and probably should not be that way (if it does not work, this is the cause).
With regards to column numbers, they are absolute, i.e. you start counting with the first field no matter if it is date, time etc.
Eg:
Fields:
Date,time,temp, humidity, UV
UV would be 4 (0,1,2,3,4), temp would be 2, time 1, date 0 and humidity 3