Good day everyone,
I guess there is a kind bug with something since trying to load the entire 3 years data erros with the above msg, but if I do in chunks one per year the load executes ok.
I noticed the .dat file size was about 2.3 GB for about 15 millions rows when failed , so I'm guessing that possibly be the problem, since loading by years the file size is just about 1 GB size.
Then the "solution" was load the data in chunks.
Thanks all for your valuable help.