[Ifeffit] GNU plot crashes

Hi everyone while working in athena project gnu plot sometimes crashes and gives the following error: Gdk:ERROR:/build/gtk+2.0-KsZKkB/gtk+2.0-2.24.30/gdk/gdkregion-generic.c:337:miSetExtents: assertion failed: (pExtents->y1 < pExtents->y2) Aborted (core dumped) Its a bit strange because I have not observed this error when working with other athena projects before and it also does not happen every time I want to plot something, only sometimes. It seems quite random to me. I have attached the athena project file so you can try yourself many thanks marcus