Thanks for the feedback Theo. By chance could you have left any of the sessions ready to go but then canceled them, e.g., because it was the end of the day and there was a no-show? I have heard of this kind of scenario causing the next session's data to append to the last line of real data. In such cases, as you found, a manual hard return in the text files was required to move the data to the next line. In any case, we'll certainly add this to our fix list for the next version.