I was on vacation last week when a DatPlot user made me aware of a bug that was introduced in Version 1.3. When removing a curve, DatPlot crashed. Not a good thing at all. Back from vacation, I determined what the problem was and squashed the bug. I also fixed an error introduced in Version 1.3 which did not allow intersection data export anymore. Version 1.3.1 is now the latest version of DatPlot. If you are running Version 1.3, please update to 1.3.1 to avoid this bug.
Many thanks to Claude for making me aware of this bug.