1. Make some data, with long strings as category and some for only one point as a category.

2. Run script

sec;
plot_cdf -r 2 irng:=[%H]!(E,F) group:=[%H]!(C,D) muldata:=layers mulgroups:=layers;
queue{watch;}

? plots are created.

==> error message “#Command Error!” dumped, sometimes it will crash after a few runs (cannot reproduce stably).