@Nicolai
2,800 columns x 130,000 rows is a 364 million data points. That could easily use up 2GB of memory!
I am guessing that you are missing a closing quote in your CSV somewhere. Which means that you have a massive row.
The latest snapshot release has much more detailed feedback on stacking. I strongly recommend you install that and look at the output in the ‘info’ and ‘warning’ tabs. See: