If requested to plot multiple bars from more datasets (bar d1,d2,d3), some few at the end are missing. Minimalistic example of this behavior is in the atatchment.
The problem is that GLE assumes that the three data sets are sampled at the same x-values and that the x-values are taken from the first data set. In your case, this data set has fewer points than the others.
I will fix this asap.
Thanks for reporting!
This is fixed in the CVS version and in the snapshot here:
The error reporting of bar graphs has also been improved.
Thanks for reporting this issue!