Hi all, with latest git the following script crashes with a memory access error under Ubuntu 21.10: <hansl> clear set verbose off nulldata 4 setobs 4 2022:01 --time-series series num = normal() series str = defarray("A", "B", "C", "D") dataset compact 1 sum #store foo.csv # works #store foo.gdtb # works store foo.gdt # crashes <hansl> The crucial thing is the string-valued series in connection with storing the dataset as a gdt file. Best Artur